UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-CSR

              CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT
                              INVESTMENT COMPANIES

                  Investment Company Act file number 811-05715
                                                     ---------

            The Gabelli Convertible and Income Securities Fund Inc.
          -------------------------------------------------------------
               (Exact name of registrant as specified in charter)

                              One Corporate Center
                            Rye, New York 10580-1422
          -------------------------------------------------------------
               (Address of principal executive offices) (Zip code)

                                 Bruce N. Alpert
                               Gabelli Funds, LLC
                              One Corporate Center
                            Rye, New York 10580-1422
          -------------------------------------------------------------
                     (Name and address of agent for service)

       registrant's telephone number, including area code: 1-800-422-3554
                                                           --------------
                   Date of fiscal year end: December 31, 2004
                                            -----------------
                     Date of reporting period: June 30, 2004
                                               -------------


Form N-CSR is to be used by management investment companies to file reports with
the Commission not later than 10 days after the  transmission to stockholders of
any report that is required to be transmitted to  stockholders  under Rule 30e-1
under the Investment Company Act of 1940 (17 CFR 270.30e-1).  The Commission may
use the information provided on Form N-CSR in its regulatory, disclosure review,
inspection, and policymaking roles.

A registrant  is required to disclose the  information  specified by Form N-CSR,
and the  Commission  will make this  information  public.  A  registrant  is not
required to respond to the  collection  of  information  contained in Form N-CSR
unless the Form  displays a  currently  valid  Office of  Management  and Budget
("OMB")  control number.  Please direct comments  concerning the accuracy of the
information  collection  burden  estimate and any  suggestions  for reducing the
burden to Secretary,  Securities and Exchange Commission,  450 Fifth Street, NW,
Washington,  DC 20549-0609.  The OMB has reviewed this collection of information
under the clearance requirements of 44 U.S.C. ss. 3507.







ITEM 1.  REPORTS TO STOCKHOLDERS.

The Report to Shareholders is attached herewith.



THE GABELLI CONVERTIBLE AND
INCOME SECURITIES FUND INC.
ONE CORPORATE CENTER
RYE, NY 10580-1422
(914) 921-5070
WWW.GABELLI.COM

                                                           SEMI-ANNUAL REPORT
                                                           JUNE 30, 2004


                                                                      GCV PQ2/04



                                                                          [LOGO]
                                                               THE GABELLI
                                                               CONVERTIBLE AND
                                                               INCOME SECURITIES
                                                               FUND INC.

             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.

                               Semi-Annual Report
                                  June 30, 2004

TO OUR SHAREHOLDERS,

      During the second  quarter of 2004,  the  Gabelli  Convertible  and Income
Securities  Fund's (the "Fund") total return  declined 1.1% on a net asset value
("NAV")  basis while the  Standard & Poor's  ("S&P") 500 Index rose 1.7% and the
Lipper  Convertible  Securities Fund Average fell 0.9%. For the six-month period
ended June 30,  2004,  the Fund's NAV total return was 0.1% versus gains of 3.4%
and  2.5% for the S&P 500  Index  and the  Lipper  Convertible  Securities  Fund
Average,  respectively.  The Fund's market price declined 8.0% during the second
quarter and declined 1.0% during the six-month period ended June 30, 2004.

      Enclosed are the financial statements and the investment portfolio as of
June 30, 2004.

COMPARATIVE RESULTS

--------------------------------------------------------------------------------



                                             AVERAGE ANNUAL RETURNS THROUGH JUNE 30, 2004 (a)
                                             ------------------------------------------------
                                                                  YEAR TO                                                 SINCE
                                                       QUARTER     DATE       1 YEAR    3 YEAR     5 YEAR    10 YEAR   INCEPTION (b)
                                                       -------     ----       ------    ------     ------    -------   -------------
                                                                                                     
Gabelli Convertible and Income Securities Fund
  NAV Return (c) ..................................     (1.14)%     0.11%      5.06%     2.40%      2.66%      6.60%       7.68%
  Investment Return (d) ...........................     (7.98)     (1.00)      4.84      6.20       7.39        N/A(e)     8.40(e)

S&P 500 Index .....................................      1.72       3.44      19.10     (0.69)     (2.20)     11.82       11.31
Lipper Convertible Securities Fund Average ........     (0.93)      2.45      15.33      4.73       5.27       9.53       10.00


(a)   Returns  represent past  performance and do not guarantee  future results.
      Investment   returns  and  the  principal  value  of  an  investment  will
      fluctuate. When shares are sold, they may be worth more or less than their
      original cost. The S&P 500 Index is an unmanaged indicator of stock market
      performance,  while the Lipper Average reflects the average performance of
      open-end mutual funds  classified in this particular  category.  Dividends
      are considered  reinvested.  Performance for periods less than one year is
      not  annualized.  Current  performance  may be  lower or  higher  than the
      performance  data  presented.   Visit   www.gabelli.com   for  performance
      information as of the most recent month-end. Investors should consider the
      investment  objectives,  risks and charges and expenses of the Fund before
      investing.

(b)   From commencement of investment operations on July 3, 1989.

(c)   Total  returns and average  annual  returns  reflect  changes in net asset
      value ("NAV") and  reinvestment of distributions at NAV on the ex-dividend
      date and adjustments for rights offerings,  and are net of expenses. Since
      Inception return based on initial net asset value of $10.00.

(d)   Total returns and average annual returns reflect changes in closing market
      values on the New York Stock Exchange and  reinvestment  of  distributions
      and adjustments for rights  offerings.  Since Inception return based on an
      initial offering price of $11.25.

(e)   The Fund  converted  to  closed-end  status on March  31,  1995 and had no
      operating history on the New York Stock Exchange prior to that date.

--------------------------------------------------------------------------------



SHAREHOLDER MEETING -- MAY 10, 2004 -- FINAL RESULTS

      The  Annual  Meeting  of  Shareholders  was  held on May  10,  2004 at the
Greenwich  Public  Library in Greenwich,  Connecticut.  At that meeting,  common
shareholders and preferred  shareholders  voting as a single class elected Mario
J.  Gabelli and Karl Otto Pohl as Directors  of the Fund.  There were  9,647,826
votes and 9,622,500  votes cast in favor of these Directors and 65,172 votes and
90,499 votes withheld for these Directors, respectively.  Preferred shareholders
voting as a separate  class elected  Werner J. Roeder as a Director of the Fund.
There were 955,930 votes cast in favor of this Director and 7,240 votes withheld
for this Director.

      E. Val  Cerutti,  Anthony  J.  Colavita,  Dugald A  Fletcher,  Anthony  R.
Pustorino,  Anthonie C. van Ekris and  Salvatore  J. Zizza  continue to serve in
their capacities as Directors of the Fund.

      We thank you for your participation and appreciate your continued support.

WWW.GABELLI.COM

      Please visit us on the Internet. Our homepage at www.gabelli.com  contains
information about Gabelli Asset Management Inc., the Gabelli Mutual Funds, IRAs,
401(k)s,  current and  historical  quarterly  reports,  closing prices and other
current   news.   We  welcome  your   comments  and   questions  via  e-mail  at
closedend@gabelli.com.

      You may sign up for our e-mail alerts at www.gabelli.com and receive early
notice of quarterly report availability,  news events,  media sightings,  mutual
fund prices and performance,  and access to the Gabelli & Company, Inc. research
library.

--------------------------------------------------------------------------------
We  have  separated  the  portfolio  manager's  commentary  from  the  financial
statements and investment portfolio due to new corporate governance  regulations
stipulated by the  Sarbanes-Oxley  Act of 2002. We have done this to ensure that
the content of the portfolio manager's commentary is unrestricted. The financial
statements and investment  portfolio are mailed separately.  Both the commentary
and the financial  statements,  including the portfolio of investments,  will be
available on our website at www.gabelli.com/funds.
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
A description  of the Fund's proxy voting  policies and  procedures  and how the
Fund voted  proxies  relating  to  portfolio  securities  during the most recent
12-month  period  ended June 30, 2004 are  available  (i) without  charge,  upon
request, by calling 800-GABELLI  (800-422-3554);  (ii) by writing to The Gabelli
Funds at One Corporate Center,  Rye, NY 10580-1422;  and (iii) on the Securities
and Exchange Commission's website at www.sec.gov.
--------------------------------------------------------------------------------


                                       2


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                            PORTFOLIO OF INVESTMENTS
                            JUNE 30, 2004 (UNAUDITED)



 PRINCIPAL                                                                                         MARKET
  AMOUNT                                                                         COST               VALUE
-----------                                                                  -----------         -----------
                                                                                        
             CONVERTIBLE CORPORATE BONDS -- 26.6%
             AUTOMOTIVE: PARTS AND ACCESSORIES -- 6.1%
$ 1,600,000  GenCorp Inc., Sub. Deb. Cv.,
               5.750%, 04/15/07 .......................................      $ 1,573,868         $ 1,696,000
    300,000  Pep Boys - Manny, Moe
               & Jack, Cv.,
               4.250%, 06/01/07 .......................................          277,942             368,250
  6,900,000  Standard Motor Products Inc.,
               Sub. Deb. Cv.,
               6.750%, 07/15/09 .......................................        5,426,144           6,831,000
                                                                             -----------         -----------
                                                                               7,277,954           8,895,250
                                                                             -----------         -----------
             AVIATION: PARTS AND SERVICES -- 2.7%
  4,028,000  Kaman Corp., Sub. Deb. Cv.,
               6.000%, 03/15/12 .......................................        3,833,670           4,002,825
                                                                             -----------         -----------
             BROADCASTING -- 0.6%
    950,000  Sinclair Broadcast Group Inc.,
               Sub. Deb. Cv.,
               4.875%, 07/15/18 .......................................          976,644             883,500
                                                                             -----------         -----------
             BUSINESS SERVICES -- 4.3%
    900,000  BBN Corp., Sub. Deb. Cv.,
               6.000%, 04/01/12+ (a)(c) ...............................          882,893                   0
  3,000,000  Franklin Resources Inc., Cv.,
               Zero Coupon, 05/11/31+ .................................        1,818,481           1,845,000
    500,000  Navistar Financial Corp.,
               Sub. Deb. Cv.,
               4.750%, 04/01/09 .......................................          445,992             493,750
             Trans-Lux Corp.,
               Sub. Deb. Cv.,
  2,600,000    8.250%, 03/01/12 .......................................        2,503,758           2,509,000
  1,500,000    7.500%, 12/01/06 .......................................        1,508,158           1,520,625
                                                                             -----------         -----------
                                                                               7,159,282           6,368,375
                                                                             -----------         -----------
             CABLE -- 1.7%
    400,000  Adelphia Communications
               Corp., Sub. Deb. Cv.,
               3.250%, 05/01/21+ (c) ..................................          127,000             150,000
  2,500,000  Charter Communications
               Inc., Cv.,
               4.750%, 06/01/06 .......................................        1,769,113           2,318,750
                                                                             -----------         -----------
                                                                               1,896,113           2,468,750
                                                                             -----------         -----------
             COMMUNICATIONS EQUIPMENT -- 2.6%
  1,800,000  Agere Systems Inc.,
               Sub. Deb. Cv.,
               6.500%, 12/15/09 .......................................        1,833,433           2,097,000
    200,000  Corning Inc., Sub. Deb. Cv.,
               Zero Coupon, 11/08/15+ .................................          147,254             157,250
  1,000,000  Lucent Technologies Inc.,
               Sub. Deb. Cv.,
               8.000%, 08/01/31 .......................................        1,066,739           1,127,500
    500,000  Nortel Networks Corp., Cv.,
               4.250%, 09/01/08 .......................................          477,540             481,250
                                                                             -----------         -----------
                                                                               3,524,966           3,863,000
                                                                             -----------         -----------
             CONSUMER PRODUCTS -- 0.1%
    100,000  Church & Dwight Co. Inc., Cv.,
               5.250%, 08/15/33 (b) ...................................          100,000             122,000
                                                                             -----------         -----------
             DIVERSIFIED INDUSTRIAL -- 0.4%
    500,000  GATX Corp., Cv.,
               7.500%, 02/01/07 (b) ...................................          500,000             586,250
                                                                             -----------         -----------
             ELECTRONICS -- 1.1%
     10,000  Artesyn Technologies,
               Sub. Deb. Cv.,
               5.500%, 08/15/10 (b) ...................................           10,757              14,275
    495,000  Cypress Semiconductor Inc.,
               Sub. Deb. Cv.,
               3.750%, 07/01/05 .......................................          476,968             491,906
  1,000,000  Oak Industries Inc.,
               Sub. Deb. Cv.,
               4.875%, 03/01/08 .......................................          838,382           1,045,000
                                                                             -----------         -----------
                                                                               1,326,107           1,551,181
                                                                             -----------         -----------
             ENERGY AND UTILITIES -- 1.1%
    500,000  Devon Energy Corp.,
               Sub. Deb. Cv.,
               4.950%, 08/15/08 .......................................          499,766             515,000
  1,500,000  Mirant Corp., Sub. Deb. Cv.,
               2.500%, 06/15/21+ (c) ..................................        1,026,728             846,562
    257,000  Moran Energy Inc.,
               Sub. Deb. Cv.,
               8.750%, 01/15/08 .......................................          182,761             253,145
                                                                             -----------         -----------
                                                                               1,709,255           1,614,707
                                                                             -----------         -----------
             EQUIPMENT AND SUPPLIES -- 0.9%
  1,272,000  Robbins & Myers Inc.,
               Sub. Deb. Cv.,
               8.000%, 01/31/08 .......................................        1,289,129           1,346,730
                                                                             -----------         -----------
             FOOD AND BEVERAGE -- 0.3%
    700,000  Parmalat Capital, Cv.,
               1.000%, 12/31/05+ (c) ..................................          806,513             160,111
    800,000  Parmalat Netherlands BV, Cv.,
               0.875%, 06/30/21+ (c) ..................................          869,837             265,132
                                                                             -----------         -----------
                                                                               1,676,350             425,243
                                                                             -----------         -----------
             HEALTH CARE -- 0.3%
             Apogent Technologies Inc., Cv.,
     50,000    2.250%, 10/15/21 (b) ...................................           50,263              55,625
     50,000    2.250%, 10/15/21 .......................................           50,107              55,625
    400,000  IVAX Corp., Sub. Deb. Cv.,
               4.500%, 05/15/08 (b) ...................................          345,344             398,000
    150,000  Sabratek Corp., Sub. Deb. Cv.,
               6.000%, 04/15/05+ (a)(c) ...............................           84,763                   0
                                                                             -----------         -----------
                                                                                 530,477             509,250
                                                                             -----------         -----------
             HOTELS AND GAMING -- 1.0%
  1,000,000  Mandalay Resort Group,  Cv.,
               2.300%, 03/21/33 .......................................        1,395,632           1,412,100
     10,000  Wynn Resorts, Sub. Deb. Cv.,
               6.000%, 07/15/15 (b) ...................................           10,284              18,988
                                                                             -----------         -----------
                                                                               1,405,916           1,431,088
                                                                             -----------         -----------


                 See accompanying notes to financial statements.


                                       3


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                      PORTFOLIO OF INVESTMENTS (CONTINUED)
                            JUNE 30, 2004 (UNAUDITED)



 PRINCIPAL                                                                                         MARKET
  AMOUNT                                                                         COST               VALUE
-----------                                                                  -----------         -----------
                                                                                        
             MANUFACTURED HOUSING AND RECREATIONAL VEHICLES -- 0.1%
$   100,000  Fleetwood Enterprises Inc., Cv.,
               5.000%, 12/15/23 (b) ...................................      $   100,000         $   151,500
                                                                             -----------         -----------
             REAL ESTATE -- 0.9%
  1,450,000  Palm Harbor Homes Inc., Cv.,
               3.250%, 05/15/24 (b) ...................................        1,437,179           1,392,000
                                                                             -----------         -----------
             RETAIL -- 0.1%
     60,000  Costco Companies Inc.,
               Sub. Deb. Cv.,
               Zero Coupon, 08/19/17+ .................................           45,808              56,775
    100,000  School Specialty Inc.,
               Sub. Deb. Cv.,
               6.000%, 08/01/08 .......................................          102,560             114,625
                                                                             -----------         -----------
                                                                                 148,368             171,400
                                                                             -----------         -----------
             TELECOMMUNICATIONS -- 0.4%
     50,000  Commonwealth Telephone
               Enterprises Inc., Cv.,
               3.250%, 07/15/23 (b) ...................................           49,638              51,000
    500,000  Rogers Communications Inc.,
               Sub. Deb. Cv.,
               2.000%, 11/26/05 .......................................          456,572             474,375
                                                                             -----------         -----------
                                                                                 506,210             525,375
                                                                             -----------         -----------
             WIRELESS COMMUNICATIONS -- 1.9%
  1,500,000  Nextel Communications Inc., Cv.,
               5.250%, 01/15/10 .......................................        1,067,626           1,466,250
  2,500,000  United States Cellular Corp.,
               Sub. Deb. Cv.,
               Zero Coupon, 06/15/15+ .................................        1,479,552           1,312,500
                                                                             -----------         -----------
                                                                               2,547,178           2,778,750
                                                                             -----------         -----------
             TOTAL CONVERTIBLE
              CORPORATE BONDS .........................................       38,010,949          39,087,174
                                                                             -----------         -----------


  SHARES
-----------
                                                                                        
             CONVERTIBLE PREFERRED STOCKS -- 16.6%
             AEROSPACE -- 0.7%
      8,000  Northrop Grumman Corp.,
               7.000% Cv. Pfd., Ser. B ................................          932,160           1,052,000
                                                                             -----------         -----------
             AUTOMOTIVE -- 0.5%
      3,000  Ford Motor Co. Capital Trust II,
               6.500% Cv. Pfd. ........................................          142,705             164,280
             General Motors Corp.,
     13,000    5.250% Cv. Pfd., Ser. B ................................          325,000             321,230
      9,000    4.500% Cv. Pfd., Ser. A ................................          225,000             230,040
                                                                             -----------         -----------
                                                                                 692,705             715,550
                                                                             -----------         -----------
             AVIATION: PARTS AND SERVICES -- 3.8%
     49,000  Coltec Capital Trust,
               5.250% Cv. Pfd. ........................................        2,032,375           2,336,565
     33,500  Sequa Corp.,
               $5.00 Cv. Pfd. .........................................        2,545,617           3,257,875
                                                                             -----------         -----------
                                                                               4,577,992           5,594,440
                                                                             -----------         -----------


                                                                                                   MARKET
  SHARES                                                                        COST                VALUE
-----------                                                                  -----------         -----------
                                                                                        
             BROADCASTING -- 3.6%
        100  Gray Television Inc.,
               8.000% Cv. Pfd.,
               Ser. C (a) .............................................      $ 1,000,000         $ 1,010,000
    100,000  Sinclair Broadcast Group Inc.,
               6.000% Cv. Pfd., Ser. D ................................        4,681,250           4,325,000
                                                                             -----------         -----------
                                                                               5,681,250           5,335,000
                                                                             -----------         -----------
             BUSINESS SERVICES -- 1.0%
     15,133  Interep National Radio Sales Inc.,
               4.000% Cv. Pfd., Ser. A (a) ............................        1,514,203           1,513,270
     20,000  Key3Media Group,
               5.500% Cv. Pfd. (a) ....................................          500,000                 117
                                                                             -----------         -----------
                                                                               2,014,203           1,513,387
                                                                             -----------         -----------
             CABLE AND SATELLITE -- 0.8%
     55,000  CVC Equity Securities Trust I,
               6.500% Cv. Pfd. ........................................        1,117,998           1,142,900
                                                                             -----------         -----------
             DIVERSIFIED INDUSTRIAL -- 0.5%
      2,500  GATX Corp.,
               $2.50 Cv. Pfd. .........................................          349,575             312,500
             WHX Corp.,
     52,100    $3.75 Cv. Pfd., Ser. B+ ................................          262,338             211,005
     28,000    6.500% Cv. Pfd., Ser. A+ ...............................          216,762             128,800
                                                                             -----------         -----------
                                                                                 828,675             652,305
                                                                             -----------         -----------
             ENERGY AND UTILITIES -- 0.3%
      6,000  AES Trust III,
               6.750% Cv. Pfd. ........................................          229,530             252,360
        500  Cinergy Corp.,
               9.500% Cv. Pfd. ........................................           25,025              29,725
      4,000  FPL Group Inc.,
               8.500% Cv. Pfd. ........................................          207,575             220,400
                                                                             -----------         -----------
                                                                                 462,130             502,485
                                                                             -----------         -----------
             ENTERTAINMENT -- 1.8%
      2,000  Metromedia International
               Group Inc.,
               7.250% Cv. Pfd.+ .......................................           26,611              21,500
     76,900  Rainbow Equity Securities
               Trust II,
               6.250% Cv. Pfd. ........................................        1,551,693           1,691,031
     39,000  Six Flags Inc.,
               7.250% Cv. Pfd. ........................................          733,580             873,600
                                                                             -----------         -----------
                                                                               2,311,884           2,586,131
                                                                             -----------         -----------
             TELECOMMUNICATIONS -- 3.3%
      4,000  ALLTEL Corp.,
               7.750% Cv. Pfd. ........................................          185,107             200,640
     15,000  Cincinnati Bell Inc.,
               6.750% Cv. Pfd., Ser. B ................................          427,662             629,700
     50,000  Citizens Communications Co.,
               5.000% Cv. Pfd. ........................................        2,491,576           2,500,000


                 See accompanying notes to financial statements.


                                       4


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                      PORTFOLIO OF INVESTMENTS (CONTINUED)
                            JUNE 30, 2004 (UNAUDITED)



                                                                                                   MARKET
  SHARES                                                                        COST                VALUE
-----------                                                                  -----------         -----------
                                                                                        
             CONVERTIBLE PREFERRED STOCKS (CONTINUED)
             TELECOMMUNICATIONS (CONTINUED)
        800  Lucent Technologies Capital
               Trust I,
               7.750% Cv. Pfd. ........................................      $   556,750         $   944,000
     12,000  Philippine Long Distance
               Telephone Co.,
               $3.50 Cv. Pfd., Ser. III ...............................          471,755             549,000
                                                                             -----------         -----------
                                                                               4,132,850           4,823,340
                                                                             -----------         -----------
             WIRELESS COMMUNICATIONS -- 0.3%
      2,000  Andrew Corp.,
               7.750% Cv. Pfd., Ser. D ................................           96,350             400,000
                                                                             -----------         -----------
             TOTAL CONVERTIBLE
              PREFERRED STOCKS ........................................       23,178,252          24,317,538
                                                                             -----------         -----------

             COMMON STOCKS -- 23.8%
             AEROSPACE -- 1.3%
    145,000  Titan Corp.+ .............................................        3,168,569           1,882,100
                                                                             -----------         -----------
             AUTOMOTIVE: PARTS AND ACCESSORIES -- 0.1%
      3,000  Genuine Parts Co. ........................................           98,400             119,040
                                                                             -----------         -----------
             AVIATION: PARTS AND SERVICES -- 0.1%
      5,000  Kaman Corp., Cl. A .......................................           65,268              69,950
                                                                             -----------         -----------
             BROADCASTING -- 0.0%
     35,000  Granite Broadcasting Corp.+ ..............................           37,187              24,500
      1,500  Young Broadcasting Inc.,
               Cl. A+ .................................................           21,540              19,725
                                                                             -----------         -----------
                                                                                  58,727              44,225
                                                                             -----------         -----------
             ENERGY AND UTILITIES -- 6.3%
     10,000  Allegheny Energy Inc.+ ...................................          133,000             154,100
      8,000  BP plc, ADR ..............................................          316,479             428,560
      3,000  CH Energy Group Inc. .....................................           83,900             139,320
      8,000  ConocoPhillips ...........................................          449,686             610,320
      4,000  Consolidated Edison Inc. .................................          158,184             159,040
     50,000  Duke Energy Corp. ........................................          922,519           1,014,500
     25,000  Exxon Mobil Corp. ........................................          912,280           1,110,250
     12,000  FPL Group Inc. ...........................................          756,170             767,400
     20,000  Great Plains Energy Inc. .................................          598,719             594,000
     17,000  KeySpan Corp. ............................................          617,600             623,900
     10,000  NiSource Inc. (SAILS)+ ...................................           20,000              25,200
     40,000  Northeast Utilities ......................................          722,124             778,800
     10,000  Progress Energy Inc., CVO+ ...............................            5,200               3,600
     10,000  Royal Dutch Petroleum Co. ................................          453,000             516,700
     20,000  SEMCO Energy Inc. ........................................          185,643             116,400
      9,000  SJW Corp. ................................................          248,354             306,000
     45,000  Unisource Energy Corp. ...................................        1,107,543           1,118,250
     50,000  Xcel Energy Inc. .........................................          854,774             835,500
                                                                             -----------         -----------
                                                                               8,545,175           9,301,840
                                                                             -----------         -----------
             FINANCIAL SERVICES -- 2.0%
     25,000  Alliance Capital Management
               Holding LP .............................................          839,216             848,750
     13,000  Argonaut Group Inc.+ .....................................          230,178             239,590
     40,000  Charter One Financial Inc. ...............................        1,758,056           1,767,600
      2,000  H&R Block Inc. ...........................................           94,098              95,360
                                                                             -----------         -----------
                                                                               2,921,548           2,951,300
                                                                             -----------         -----------
             FOOD AND BEVERAGE -- 3.7%
      2,000  Allied Domecq plc, ADR ...................................           68,640              69,380
      2,000  Cadbury Schweppes
               plc, ADR ...............................................           68,010              70,160
      2,000  Coca-Cola Co. ............................................          103,720             100,960
     65,000  Dreyer's Grand Ice Cream
               Holdings Inc., Cl. A ...................................        5,076,642           5,140,850
                                                                             -----------         -----------
                                                                               5,317,012           5,381,350
                                                                             -----------         -----------
             HEALTH CARE -- 2.5%
     12,000  Bristol-Myers Squibb Co. .................................          319,665             294,000
      2,000  Eli Lilly & Co. ..........................................          130,600             139,820
     25,000  Merck & Co. Inc. .........................................        1,126,943           1,187,500
     50,000  Pfizer Inc. ..............................................        1,696,205           1,714,000
     20,000  Schering-Plough Corp. ....................................          316,285             369,600
                                                                             -----------         -----------
                                                                               3,589,698           3,704,920
                                                                             -----------         -----------
             HOTELS AND GAMING -- 2.9%
    300,000  Hilton Group plc .........................................        1,438,709           1,501,577
     40,000  Mandalay Resort Group ....................................        2,724,000           2,745,600
                                                                             -----------         -----------
                                                                               4,162,709           4,247,177
                                                                             -----------         -----------
             REAL ESTATE INVESTMENT TRUSTS -- 0.3%
     20,000  Keystone Property Trust ..................................          477,760             480,600
                                                                             -----------         -----------
             RETAIL -- 0.1%
      5,000  Safeway Inc.+ ............................................          112,280             126,700
                                                                             -----------         -----------
             SATELLITE -- 0.0%
     19,500  Loral Space &
               Communications Ltd.+ ...................................            3,765               2,828
                                                                             -----------         -----------
             TELECOMMUNICATIONS -- 1.1%
     10,000  AT&T Corp. ...............................................          222,661             146,300
      3,000  BellSouth Corp. ..........................................           75,500              78,660
      6,000  CenturyTel Inc. ..........................................          177,121             180,240
     15,000  Manitoba Telecom
               Services Inc. ..........................................          500,730             507,365
      5,000  SBC Communications Inc. ..................................          113,100             121,250
     15,000  Verizon Communications Inc. ..............................          510,837             542,850
                                                                             -----------         -----------
                                                                               1,599,949           1,576,665
                                                                             -----------         -----------
             WIRELESS COMMUNICATIONS -- 3.4%
    350,000  AT&T Wireless Services Inc.+ .............................        4,949,385           5,012,000
         49  Winstar Communications Inc.+ .............................              438                   0
                                                                             -----------         -----------
                                                                               4,949,823           5,012,000
                                                                             -----------         -----------
             TOTAL COMMON
              STOCKS ..................................................       35,210,036          34,900,695
                                                                             -----------         -----------

                 See accompanying notes to financial statements.


                                       5


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                      PORTFOLIO OF INVESTMENTS (CONTINUED)
                            JUNE 30, 2004 (UNAUDITED)



                                                                                                   MARKET
  SHARES                                                                        COST                VALUE
-----------                                                                  -----------         -----------
                                                                                        
             PREFERRED STOCKS -- 2.1%
             BROADCASTING -- 0.8%
      2,127  Granite Broadcasting Corp.,
               12.750% Pfd.+ ..........................................      $    879,779        $  1,196,438
                                                                             ------------        ------------
             EQUIPMENT AND SUPPLIES -- 1.1%
     65,000  Fedders Corp.,
               8.600% Pfd., Ser. A ....................................         1,537,047           1,589,250
                                                                             ------------        ------------
             PUBLISHING -- 0.2%
      9,777  News Corp. Ltd., Pfd., ADR ...............................           283,729             321,468
                                                                             ------------        ------------
             TELECOMMUNICATIONS -- 0.0%
      3,773  PTV Inc., 10.000% Pfd., Ser. A ...........................                 0              28,863
                                                                             ------------        ------------
             TOTAL PREFERRED
              STOCKS ..................................................         2,700,555           3,136,019
                                                                             ------------        ------------

   PRINCIPAL
    AMOUNT
   --------
                                                                                        
             CORPORATE BONDS -- 0.9%
             CONSUMER SERVICES -- 0.0%
 $1,100,000  Ogden Corp., Sub. Deb.,
               Zero Coupon, 06/01/49+ (c) .............................         1,090,087                   0
                                                                             ------------        ------------
             DIVERSIFIED INDUSTRIAL -- 0.9%
  2,000,000  GP Strategies Corp., Sub. Deb.,
               6.000%, 08/14/08 (a) ...................................         1,447,083           1,350,923
                                                                             ------------        ------------
             TELECOMMUNICATIONS -- 0.0%
     80,000  Amnex Inc., Sub. Deb.,
               Zero Coupon,
               09/25/49+ (b)(c) .......................................            71,773                   0
                                                                             ------------        ------------
             TOTAL CORPORATE
              BONDS ...................................................         2,608,943           1,350,923
                                                                             ------------        ------------


    SHARES
   --------
                                                                                        
             WARRANTS -- 0.4%
             BUSINESS SERVICES -- 0.0%
     87,500  Interep National Radio
               Sales Inc.,+ ...........................................                 0                   0
                                                                             ------------        ------------
             CONSUMER PRODUCTS -- 0.0%
      4,331  Pillowtex Corp.,
               expire 11/24/09+ .......................................           120,955                   1
                                                                             ------------        ------------
             DIVERSIFIED INDUSTRIAL -- 0.4%
    250,000  GP Strategies Corp.,
               expire 08/14/08+ (a) ...................................           637,065             637,065
                                                                             ------------        ------------
             TOTAL WARRANTS ...........................................           758,020             637,066
                                                                             ------------        ------------


 PRINCIPAL                                                                                         MARKET
  AMOUNT                                                                         COST               VALUE
-----------                                                                  -----------         -----------
                                                                                        
             U.S. GOVERNMENT OBLIGATIONS -- 29.6%
$43,474,000  U.S. Treasury Bills,
               0.945% to 1.297%++,
               07/01/04 to 10/14/04 ...................................         $ 43,438,793        $ 43,437,527
                                                                                ------------        ------------
TOTAL INVESTMENTS -- 100.0% ...........................................         $145,369,989         146,866,942
                                                                                ============

OTHER ASSETS IN EXCESS OF LIABILITIES .................................                                1,306,185
                                                                                                    ------------

PREFERRED STOCK
  (991,800 preferred shares outstanding) ..............................                              (49,770,000)
                                                                                                    ------------

NET ASSETS -- COMMON STOCK
  (11,565,300 common shares outstanding) ..............................                             $ 98,403,127
                                                                                                    ============
NET ASSET VALUE PER COMMON SHARE
   ($98,403,127 / 11,565,300 shares outstanding) ......................                                    $8.51
                                                                                                           =====
----------
             For Federal tax purposes:
             Aggregate cost ...........................................                             $145,905,548
                                                                                                    ============
             Gross unrealized appreciation ............................                             $  7,997,007
             Gross unrealized depreciation ............................                               (7,035,613)
                                                                                                    ------------
             Net unrealized appreciation ..............................                             $    961,394
                                                                                                    ============


----------
(a)   Security  fair  valued  under  procedures  established  by  the  Board  of
      Directors.   The  procedures may  include  reviewing  available  financial
      information  about the  company  and  reviewing  valuation  of  comparable
      securities  and other factors on a regular  basis.  At June 30, 2004,  the
      market value of fair valued  securities  amounted to $4,511,375 or 3.1% of
      total net assets.

(b)   Security exempt from registration under Rule 144A of the Securities Act of
      1933, as amended.  These  securities may be resold in transactions  exempt
      from registration, normally to qualified institutional buyers. At June 30,
      2004, the market value of Rule 144A  securities  amounted to $2,789,638 or
      1.90% of total investments. For securities deemed illiquid by the Adviser,
      additional details are included in the Notes to Financial Statements (Note
      8).

(c)   Bond in default.

+     Non-income producing security.

++    Represents annualized yield at date of purchase.

ADR   - American Depository Receipt.

CVO   - Contingent Value Obligation.

SAILS - Stock Appreciation Income Linked Securities.

                 See accompanying notes to financial statements.


                                       6


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.

                       STATEMENT OF ASSETS AND LIABILITIES
                            JUNE 30, 2004 (UNAUDITED)


                                                                                          
ASSETS:
  Investments, at value (cost $145,369,989) ....................................             $ 146,866,942
  Dividends and interest receivable ............................................                   878,086
  Unrealized appreciation on swap contracts ....................................                   714,665
                                                                                             -------------
  TOTAL ASSETS .................................................................               148,459,693
                                                                                             -------------
LIABILITIES:
  Dividends payable ............................................................                    13,323
  Payable for investment advisory fees .........................................                    80,655
  Payable for swap interest expense ............................................                    39,497
  Payable for shareholder communications expense ...............................                    23,236
  Payable for payroll expenses .................................................                    22,861
  Payable for legal and audit fees .............................................                    28,255
  Payable to custodian .........................................................                     7,032
  Payable for shareholder services fees ........................................                    10,234
  Other accrued expenses and liabilities .......................................                    61,473
                                                                                             -------------
  TOTAL LIABILITIES ............................................................                   286,566
                                                                                             -------------
PREFERRED STOCK:
  Series B Cumulative Preferred Stock (6.00%, $25
    liquidation value, $0.001 par value, 1,000,000
    shares authorized with 990,800 shares issued
    and outstanding) ...........................................................                24,770,000
  Series C Cumulative Preferred Stock (Auction Rate,
    $25,000 liquidation value, $0.001 par value,
    1,000 shares authorized with 1,000 shares issued
    and outstanding) ...........................................................                25,000,000
                                                                                             -------------
  TOTAL PREFERRED STOCK ........................................................                49,770,000
                                                                                             -------------
  NET ASSETS ATTRIBUTABLE TO COMMON
    STOCK SHAREHOLDERS .........................................................             $  98,403,127
                                                                                             =============
NET ASSETS ATTRIBUTABLE TO COMMON STOCK
  SHAREHOLDERS CONSIST OF:
  Capital stock, at par value ..................................................             $      11,565
  Additional paid-in capital ...................................................               100,647,222
  Accumulated distributions in excess of net
    investment income ..........................................................                (3,322,225)
  Accumulated net realized loss on investments, swap
    contracts and foreign currency transactions ................................                (1,145,053)
  Net unrealized appreciation on investments and
    swap contracts .............................................................                 2,211,618
                                                                                             -------------
  TOTAL NET ASSETS .............................................................             $  98,403,127
                                                                                             =============
NET ASSET VALUE PER COMMON SHARE
  ($98,403,127 / 11,565,300 shares outstanding;
  998,000,000 shares authorized of $0.001 par value) ...........................                     $8.51
                                                                                                     =====


                             STATEMENT OF OPERATIONS
               FOR THE SIX MONTHS ENDED JUNE 30, 2004 (UNAUDITED)


                                                                                            
INVESTMENT INCOME:
  Dividends (net of foreign taxes of $7,314) ...................................               $ 1,114,161
  Interest .....................................................................                 1,654,578
                                                                                               -----------
  TOTAL INVESTMENT INCOME ......................................................                 2,768,739
                                                                                               -----------
EXPENSES:
  Investment advisory fees .....................................................                   505,721
  Payroll ......................................................................                    52,673
  Shareholder communications expenses ..........................................                    42,114
  Auction agent fees ...........................................................                    31,200
  Directors' fees ..............................................................                    31,039
  Legal and audit fees .........................................................                    27,206
  Shareholder services fees ....................................................                    23,805
  Custodian fees ...............................................................                    19,521
  Miscellaneous expenses .......................................................                    43,682
                                                                                               -----------
  TOTAL EXPENSES ...............................................................                   776,961
                                                                                               -----------
  NET INVESTMENT INCOME ........................................................                 1,991,778
                                                                                               -----------
NET REALIZED AND UNREALIZED GAIN (LOSS) ON
  INVESTMENTS, SWAP CONTRACTS AND
  FOREIGN CURRENCY TRANSACTIONS:
  Net realized gain on investments .............................................                   574,974
  Net realized gain on foreign currency transactions ...........................                    26,740
  Net realized loss on swap contracts ..........................................                  (257,946)
                                                                                               -----------
  Net realized gain on investments, swap contracts
    and foreign currency transactions ..........................................                   343,768
                                                                                               -----------
  Net change in unrealized appreciation/depreciation
    on investments, swap contracts and foreign
    currency transactions ......................................................                (1,578,974)
                                                                                               -----------
  NET REALIZED AND UNREALIZED LOSS ON
    INVESTMENTS, SWAP CONTRACTS AND
    FOREIGN CURRENCY TRANSACTIONS ..............................................                (1,235,206)
                                                                                               -----------
  NET INCREASE IN NET ASSETS RESULTING
    FROM OPERATIONS ............................................................                   756,572
                                                                                               -----------
  Total Distributions to Preferred Stock Shareholders ..........................                  (879,931)
                                                                                               -----------
  NET DECREASE IN NET ASSETS ATTRIBUTABLE TO
    COMMON STOCK SHAREHOLDERS RESULTING
    FROM OPERATIONS ............................................................               $  (123,359)
                                                                                               ===========


                 See accompanying notes to financial statements.


                                       7


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.

     STATEMENT OF CHANGES IN NET ASSETS ATTRIBUTABLE TO COMMON SHAREHOLDERS



                                                                                               SIX MONTHS ENDED
                                                                                                 JUNE 30, 2004         YEAR ENDED
                                                                                                  (UNAUDITED)      DECEMBER 31, 2003
                                                                                               ----------------    -----------------
                                                                                                               
OPERATIONS:
  Net investment income .....................................................................    $   1,991,778       $   3,437,267*
  Net realized gain on investments and foreign currency transactions ........................          343,768           1,908,501*
  Net change in unrealized appreciation/depreciation on investments, swap contracts and
    foreign currency transactions ...........................................................       (1,578,974)         11,414,212
                                                                                                 -------------       -------------
  NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS ......................................          756,572          16,759,980
                                                                                                 -------------       -------------
DISTRIBUTIONS TO PREFERRED STOCK SHAREHOLDERS:
  Net investment income .....................................................................         (879,931)         (1,198,833)
  Net realized short-term gain on investments and foreign currency transactions .............               --             (21,214)
  Net realized long-term gain on investments and foreign currency transactions ..............               --            (333,018)
                                                                                                 -------------       -------------
  TOTAL DISTRIBUTIONS TO PREFERRED STOCK SHAREHOLDERS .......................................         (879,931)         (1,553,065)
                                                                                                 -------------       -------------
  NET INCREASE (DECREASE) IN NET ASSETS ATTRIBUTABLE TO COMMON STOCK SHAREHOLDERS
    RESULTING FROM OPERATIONS ...............................................................         (123,359)         15,206,915
                                                                                                 -------------       -------------
DISTRIBUTIONS TO COMMON STOCK SHAREHOLDERS:
  Net investment income .....................................................................       (1,260,094)         (1,939,172)
  Net realized short-term gain on investments and foreign currency transactions .............               --             (21,299)
  Net realized long-term gain on investments and foreign currency transactions ..............               --            (319,084)
  Return of capital .........................................................................       (3,322,225)**       (6,705,640)
                                                                                                 -------------       -------------
  TOTAL DISTRIBUTIONS TO COMMON STOCK SHAREHOLDERS ..........................................       (4,582,319)         (8,985,195)
                                                                                                 -------------       -------------
CAPITAL SHARE TRANSACTIONS:
  Net increase in net assets from common shares issued upon reinvestment of
    dividends and distributions .............................................................        1,437,890           2,959,921
  Net increase in net assets from repurchase of preferred shares ............................           12,778                  --
  Offering costs for preferred shares charged to paid-in capital ............................               --          (1,297,744)
                                                                                                 -------------       -------------
  NET INCREASE IN NET ASSETS FROM FUND SHARE TRANSACTIONS ...................................        1,450,668           1,662,177
                                                                                                 -------------       -------------
  NET INCREASE (DECREASE) IN NET ASSETS ATTRIBUTABLE TO COMMON STOCK SHAREHOLDERS ...........       (3,255,010)          7,883,897
                                                                                                 -------------       -------------
NET ASSETS ATTRIBUTABLE TO COMMON STOCK SHAREHOLDERS:
  Beginning of period .......................................................................      101,658,137          93,774,240
                                                                                                 -------------       -------------
  End of period .............................................................................    $  98,403,127       $ 101,658,137
                                                                                                 =============       =============


----------

 *    As a result of recent changes in generally accepted accounting principles,
      the Fund has reclassified  periodic payments made under interest rate swap
      agreements,  previously included within interest income, as a component of
      realized  gain (loss) in the statement of  operations.  The effect of this
      reclassification  was to  increase  net  investment  income  and  decrease
      realized gain by $371,093.

**    Based on current earnings and subject to change and  recharacterization at
      fiscal year end.

                 See accompanying notes to financial statements.


                                       8


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                    NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

1.  ORGANIZATION.  The Gabelli  Convertible and Income Securities Fund Inc. (the
"Fund") is a closed-end  diversified  management  investment  company registered
under the  Investment  Company Act of 1940,  as amended (the "1940 Act"),  whose
investment  objective  is to  seek  a high  level  of  total  return  through  a
combination  of  current  income  and  capital   appreciation  by  investing  in
convertible  securities.  The Fund was  incorporated in Maryland on December 19,
1988 as an open-end  diversified  management  investment  company and  commenced
investment  operations  on July 3, 1989 as The  Gabelli  Convertible  Securities
Fund,  Inc. The Board of Directors  (the  "Board"),  upon  approval at a special
meeting  of  shareholders  held on  February  17,  1995,  voted to  approve  the
conversion of the Fund to closed-end status, effective March 31, 1995.

      Effective  August  1,  2002,  the Fund  changed  its  name to The  Gabelli
Convertible  and Income  Securities Fund Inc. The Fund continues to maintain its
investment  objective  of  seeking  a high  level  of  total  return  through  a
combination of current income and capital appreciation.  Consistent with its new
name, under normal market  conditions,  the Fund will invest at least 80% of its
net assets in a  combination  of  convertible  securities  and income  producing
securities  (the "80%  Policy").  The Fund  expects to continue  its practice of
focusing on convertible  securities to the extent  attractive  opportunities are
available.

      The 80% Policy may be changed without shareholder  approval.  However, the
Fund has adopted a policy to provide  shareholders  with at least 60 days' prior
notice of the implementation of any change in the 80% Policy.

      2.  SIGNIFICANT   ACCOUNTING   POLICIES.   The  preparation  of  financial
statements in accordance  with U.S.  generally  accepted  accounting  principles
requires  management to make estimates and assumptions  that affect the reported
amounts and disclosures in the financial statements. Actual results could differ
from those  estimates.  The  following  is a summary of  significant  accounting
policies followed by the Fund in the preparation of its financial statements.

      SECURITY VALUATION.  Portfolio securities listed or traded on a nationally
recognized securities exchange or traded in the U.S. over-the-counter market for
which market quotations are readily available are valued at the last quoted sale
price or a market's  official  closing  price as of the close of business on the
day the  securities  are being  valued.  If there  were no sales  that day,  the
security is valued at the  average of the  closing  bid and asked  prices or, if
there were no asked  prices  quoted on that day,  then the security is valued at
the closing bid price on that day. If no bid or asked  prices are quoted on such
day,  the  security is valued at the most  recently  available  price or, if the
Board so determines,  by such other method as the Board shall  determine in good
faith,  to reflect its fair market value.  Portfolio  securities  traded on more
than one  national  securities  exchange or market are valued  according  to the
broadest and most  representative  market,  as determined by Gabelli Funds,  LLC
(the "Adviser").

      Portfolio  securities  primarily  traded on foreign  markets are generally
valued at the preceding  closing values of such  securities on their  respective
exchanges or if after the close, market conditions change significantly, certain
foreign securities may be fair valued pursuant to procedures  established by the
Board.  Debt instruments that are not credit impaired with remaining  maturities
of 60 days or less are valued at  amortized  cost,  unless the Board  determines
such does not reflect the securities' fair value, in which case these securities
will be valued at their fair value as determined by the Board.  Debt instruments
having a maturity  greater than 60 days for which market  quotations are readily
available are valued at the latest average of the bid and asked prices. If there
were no asked  prices  quoted  on such day,  the  security  is valued  using the
closing  bid  price.  Futures  contracts  are  valued  at the  official  closing
settlement  price of the  exchange  or board  of trade on which  the  applicable
contract is traded.

      Securities  and  assets  for  which  market  quotations  are  not  readily
available  are  valued at their  fair value as  determined  in good faith  under
procedures  established by and under the general  supervision of the Board. Fair
valuation  methodologies  and  procedures  may include,  but are not limited to:
analysis and review of available  financial and non-financial  information about
the company;  comparisons  to the  valuation and changes in valuation of similar
securities,  including a comparison of foreign securities to the equivalent U.S.
dollar value ADR securities at the close of the U.S. exchange; and evaluation of
any other information that could be indicative of the value of the security.


                                       9


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)

      REPURCHASE AGREEMENTS.  The Fund may enter into repurchase agreements with
primary government  securities dealers recognized by the Federal Reserve Bank of
New York,  with member banks of the Federal Reserve System or with other brokers
or dealers that meet credit  guidelines  established by the Adviser and reviewed
by the Board of Directors.  Under the terms of a typical  repurchase  agreement,
the Fund  takes  possession  of an  underlying  debt  obligation  subject  to an
obligation of the seller to repurchase,  and the Fund to resell,  the obligation
at an  agreed-upon  price and time,  thereby  determining  the yield  during the
Fund's holding period.  The Fund will always receive and maintain  securities as
collateral  whose market value,  including  accrued  interest,  will be at least
equal to 102% of the dollar amount invested by the Fund in each  agreement.  The
Fund will make payment for such securities  only upon physical  delivery or upon
evidence  of  book  entry  transfer  of the  collateral  to the  account  of the
custodian.  To the extent that any repurchase  transaction  exceeds one business
day,  the  value  of the  collateral  is  marked-to-market  on a daily  basis to
maintain the adequacy of the collateral. If the seller defaults and the value of
the collateral declines or if bankruptcy  proceedings are commenced with respect
to the seller of the security,  realization of the collateral by the Fund may be
delayed or limited.

      SWAP  AGREEMENTS.  The Fund  may  enter  into  interest  rate  swap or cap
transactions.  The use of interest  rate swaps and caps is a highly  specialized
activity that involves  investment  techniques  and risks  different  from those
associated with ordinary  portfolio security  transactions.  In an interest rate
swap,  the Fund would agree to pay to the other party to the interest  rate swap
(which is known as the  "counterparty")  periodically  a fixed  rate  payment in
exchange  for  the  counterparty  agreeing  to pay to the  Fund  periodically  a
variable rate payment that is intended to approximate  the Fund's  variable rate
payment obligation on the Series C Preferred Stock. In an interest rate cap, the
Fund would pay a premium to the interest  rate cap to the  counterparty  and, to
the extent that a specified  variable rate index exceeds a  predetermined  fixed
rate,  would receive from the  counterparty  payments of the difference based on
the  notional  amount  of such  cap.  Interest  rate  swap and cap  transactions
introduce  additional  risk  because  the Fund  would  remain  obligated  to pay
preferred stock dividends when due in accordance with the Articles Supplementary
even if the counterparty defaulted. Depending on the general state of short-term
interest rates and the returns on the Fund's portfolio  securities at that point
in time,  such a default  could  negatively  affect the  Fund's  ability to make
dividend payments for the Series C Preferred Stock. In addition,  at the time an
interest rate swap or cap transaction  reaches its scheduled  termination  date,
there  is a risk  that  the  Fund  will  not be able  to  obtain  a  replacement
transaction or that the terms of the replacement  will not be as favorable as on
the expiring transaction. If this occurs, it could have a negative impact on the
Fund's ability to make dividend payments on the Series C Preferred Stock.

      The Fund has entered into one interest rate swap  agreement  with Citibank
N.A.  Under the agreement the Fund receives a floating rate of interest and pays
a respective fixed rate of interest on the nominal value of the swap. Details of
the swap at June 30, 2004 are as follows:



               NOTIONAL                                FLOATING RATE*              TERMINATION          UNREALIZED
                AMOUNT           FIXED RATE        (RATE RESET MONTHLY)                DATE            APPRECIATION
                ------           ----------        --------------------            -----------         ------------
                                                                                              
             $25,000,000           3.145%                  1.12%                  April 2, 2008           $714,665


----------
*Based on Libor (London Interbank Offered Rate).

      As a result of recent  FASB  Emerging  Issues  Task Force  consensus  (and
subsequent  related  SEC staff  guidance),  the Fund has  reclassified  periodic
payments made under interest rate swap  agreement,  previously  included  within
interest  income,  as a component  of realized  gain (loss) in the  statement of
operations. For consistency, similar reclassifications have been made to amounts
appearing in the previous year's  statement of changes in net assets and the per
share amounts in prior years  financial  highlights.  Prior years net investment
income ratios in the financial highlights have also been modified accordingly.

      This  reclassification  increased net investment  income and decreased net
realized  gains by $371,093 for the year ended  December  31,  2003,  but had no
effect on the Fund's net asset value, either in total or per share, or its total
increase (decrease) in net assets from operations during any period.


                                       10


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)

      For   the   year   ended   December   31,   2003   financial    highlights
reclassifications  were as follows: net investment income per share increased by
$0.03, the ratio of net investment income to average net assets  attributable to
common shares increased by 0.38%, the ratio of operating expenses to average net
assets  attributable  to common  shares  decreased  by  0.38%,  and the ratio of
operating  expenses to average total net assets including  liquidation  value of
preferred shares decreased by 0.26%.

      FUTURES  CONTRACTS.  The Fund may  engage  in  futures  contracts  for the
purpose of hedging against changes in the value of its portfolio  securities and
in the value of securities it intends to purchase. Such investments will only be
made if they are economically  appropriate to the reduction of risks involved in
the management of the Fund's investments. Upon entering into a futures contract,
the Fund is  required  to  deposit  with the  broker  an  amount of cash or cash
equivalents equal to a certain percentage of the contract amount.  This is known
as the "initial margin."  Subsequent payments  ("variation  margin") are made or
received by the Fund each day,  depending on the daily  fluctuation of the value
of the  contract.  The daily  changes in the contract are included in unrealized
appreciation/depreciation   on  investments  and  futures  contracts.  The  Fund
recognizes  a realized  gain or loss when the  contract  is closed.  At June 30,
2004, there were no open futures contracts.

      There are several risks in connection with the use of futures contracts as
a hedging device. The change in value of futures contracts primarily corresponds
with the value of their underlying instruments, which may not correlate with the
change in value of the hedged investments.  In addition,  there is the risk that
the Fund may not be able to  enter  into a  closing  transaction  because  of an
illiquid secondary market.

      FORWARD FOREIGN EXCHANGE CONTRACTS. The Fund may engage in forward foreign
exchange contracts for hedging a specific transaction with respect to either the
currency in which the  transaction is denominated or another  currency as deemed
appropriate by the Adviser. Forward foreign exchange contracts are valued at the
forward  rate and are  marked-to-market  daily.  The  change in market  value is
included in  unrealized  appreciation/depreciation  on  investments  and foreign
currency transactions.  When the contract is closed, the Fund records a realized
gain or loss equal to the  difference  between the value of the  contract at the
time it was opened and the value at the time it was closed.

      The  use  of  forward  foreign  exchange   contracts  does  not  eliminate
fluctuations in the underlying prices of the Fund's portfolio securities, but it
does  establish a rate of exchange that can be achieved in the future.  Although
forward  foreign  exchange  contracts limit the risk of loss due to a decline in
the value of the hedged currency, they also limit any potential gain/(loss) that
might result should the value of the currency  increase.  In addition,  the Fund
could be exposed to risks if the  counterparties  to the contracts are unable to
meet the terms of their  contracts.  At June 30, 2004,  the Fund held no forward
foreign exchange contracts.

      FOREIGN  CURRENCY  TRANSACTIONS.  The  books and  records  of the Fund are
maintained in United States (U.S.) dollars. Foreign currencies,  investments and
other assets and liabilities  are translated  into U.S.  dollars at the exchange
rates prevailing at the end of the period, and purchases and sales of investment
securities,  income and expenses are translated at the exchange rate  prevailing
on the respective dates of such transactions. Unrealized gains and losses, which
result from changes in foreign exchange rates and/or changes in market prices of
securities,  have  been  included  in  unrealized  appreciation/depreciation  on
investments and foreign  currency  transactions.  Net realized  foreign currency
gains and losses  resulting  from  changes in  exchange  rates  include  foreign
currency gains and losses  between trade date and settlement  date on investment
securities  transactions,  foreign  currency  transactions  and  the  difference
between the amounts of interest and dividends  recorded on the books of the Fund
and the amounts  actually  received.  The portion of foreign  currency gains and
losses  related to  fluctuation in exchange rates between the initial trade date
and  subsequent  sale  trade  date  is  included  in  realized   gain/(loss)  on
investments.

      SECURITIES TRANSACTIONS AND INVESTMENT INCOME. Securities transactions are
accounted  for as of the trade date with  realized  gain or loss on  investments
determined  by using the  identified  cost method.  Interest  income  (including
amortization  of premium  and  accretion  of  discount)  is  recorded as earned.
Dividend income is recorded on the ex-dividend date.

      DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS. Distributions to shareholders
are recorded on the  ex-dividend  date.  Income  distributions  and capital gain
distributions are determined in accordance with income tax regulations which may
differ from generally  accepted  accounting  principles.  These  differences are
primarily due to differing treatments of income


                                       11


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)

and gains on various investment  securities held by the Fund, timing differences
and differing  characterization of distributions made by the Fund. Distributions
to  shareholders  of the Fund's 6.00% Series B  Cumulative  Preferred  Stock and
Series C Auction Rate Cumulative Preferred Stock ("Cumulative  Preferred Stock")
are accrued on a daily basis and are determined as described in Note 5.

      For the year  ended  December  31,  2003,  reclassifications  were made to
increase  accumulated  distributions  in excess  of net  investment  income  for
$11,140 and to decrease accumulated net realized loss on investments, securities
sold short and foreign  currency  transactions  for $11,140  with an  offsetting
adjustment to additional paid-in capital.

      The tax  character  of  distributions  paid  during the fiscal  year ended
December 31, 2003 was as follows:

                                                               YEAR ENDED
                                                            DECEMBER 31, 2003
                                                        ------------------------
                                                          COMMON       PREFERRED
                                                        ----------    ----------
         DISTRIBUTIONS PAID FROM:
         Ordinary income
           (inclusive of short term capital gains)      $1,960,471    $1,220,047
         Net long term capital gains ..............        319,084       333,018
         Non-taxable return of capital ............      6,705,640            --
                                                        ----------    ----------
         Total distributions paid .................     $8,985,195    $1,553,065
                                                        ==========    ==========

      PROVISION FOR INCOME  TAXES.  The Fund intends to continue to qualify as a
regulated  investment company under Subchapter M of the Internal Revenue Code of
1986, as amended. It is the Fund's policy to comply with the requirements of the
Internal  Revenue Code  applicable  to  regulated  investment  companies  and to
distribute  substantially  all of its net investment  company taxable income and
net capital gains. Therefore, no provision for Federal income taxes is required.

      As of December 31, 2003, the  components of accumulated  earnings/(losses)
on a tax basis were as follows:

         Net unrealized appreciation ..............        $ 2,672,864
         Other ....................................           (222,846)
                                                           -----------
         Total accumulated gain ...................        $ 2,450,018
                                                           ===========

      Other is primarily due to dividends payable and defaulted interest.

      For the year ended  December 31, 2003,  the Fund deducted net capital loss
carryovers  from prior years  against its current year net capital  gains in the
amount of $1,343,575.

      Differences  between amounts reported on a tax basis and those reported on
a book basis are  primarily  due to timing of  recognition  of capital  gains on
investments held by the Fund.

3. AGREEMENTS AND  TRANSACTIONS  WITH  AFFILIATES.  The Fund has entered into an
investment advisory agreement (the "Advisory  Agreement") with the Adviser which
provides  that the Fund  will pay the  Adviser  a fee,  computed  daily and paid
monthly,  equal on an annual  basis to 1.00% of the value of the Fund's  average
daily net assets plus  liquidation  value of preferred stock. In accordance with
the Advisory Agreement, the Adviser provides a continuous investment program for
the Fund's  portfolio  and  oversees  the  administration  of all aspects of the
Fund's business and affairs. The Adviser has agreed to reduce the management fee
on the incremental assets attributable to the Cumulative  Preferred Stock if the
total return of the net asset value of the common shares of the Fund,  including
distributions and advisory fee subject to reduction,  does not exceed the stated
dividend rate or corresponding  swap rate of the Cumulative  Preferred Stock for
the year.

      The Fund's  total  return on the net asset  value of the common  shares is
monitored on a monthly basis to assess whether the total return on the net asset
value of the common shares  exceeds the stated  dividend rate of the  Cumulative
Preferred  Stock for the period.  For the six months  ended June 30,  2004,  the
Fund's total  return on the net asset value of the common  shares did not exceed
the stated  dividend  rates and net swap  expense of all  outstanding  preferred
stock.  Thus,  management  fees were  reduced by $248,347  with respect to those
preferred stock assets.


                                       12


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)

      During  the six  months  ended  June 30,  2004,  Gabelli &  Company,  Inc.
received  $37,419  in  brokerage  commissions  as a result of  executing  agency
transactions in portfolio securities on behalf of the Fund.

      The cost of  calculating  the Fund's  net asset  value per share is a Fund
expense pursuant to the Advisory Agreement. During the six months ended June 30,
2004,  the Fund  reimbursed the Adviser  $17,400 in connection  with the cost of
computing the Fund's net asset value which is included in miscellaneous expenses
in the Statement of Operations.

4.  PORTFOLIO  SECURITIES.  Costs  of  purchases  and  proceeds  from  sales  of
securities,  other than short-term securities, for the six months ended June 30,
2004 aggregated $33,972,898 and $20,091,055, respectively.

5. CAPITAL.  The charter permits the Fund to issue 998,000,000  shares of common
stock (par value $0.001).

      Transactions in common stock were as follows:



                                                                         SIX MONTHS ENDED
                                                                          JUNE 30, 2004                    YEAR ENDED
                                                                            (UNAUDITED)                DECEMBER 31, 2003
                                                                       -----------------------      -----------------------
                                                                       SHARES         AMOUNT         SHARES        AMOUNT
                                                                       -------      ----------      -------      ----------
                                                                                                     
         Shares issued upon reinvestment of dividends
           and distributions ....................................      143,653      $1,437,890      308,216      $2,959,921
                                                                       -------      ----------      -------      ----------
         Net increase ...........................................      143,653      $1,437,890      308,216      $2,959,921
                                                                       =======      ==========      =======      ==========


      The Adviser has been  authorized to repurchase on behalf of the Fund up to
500,000  shares of Common  Stock of the Fund in the open  market,  whenever  the
shares are  trading at a discount of 10% or more from the net asset value of the
shares.  For the six months ended June 30, 2004, the Fund did not repurchase any
shares of  Common  Stock.  All  shares of  Common  Stock  repurchased  have been
retired.

      In addition,  the Fund has been authorized to issue up to 2,000,000 shares
of Cumulative  Preferred Stock of which 1,200,000 shares have been designated as
$0.001  par value 8%  Cumulative  Preferred  Stock.  Dividends  on shares of the
Cumulative Preferred Stock are cumulative.  The Fund is required to meet certain
asset coverage tests with respect to the Cumulative  Preferred Stock as required
by the 1940 Act and by the Shares' Articles Supplementary.  If the Fund fails to
meet these  requirements  and does not  correct  such  failure,  the Fund may be
required  to  redeem,  in part or in full,  the 6% Series B and Series C Auction
Rate  Cumulative  Preferred  Stock at a redemption  price of $25.00 and $25,000,
respectively,  per share  plus an amount  equal to the  accumulated  and  unpaid
dividends  whether  or not  declared  on such  shares  in  order  to meet  these
requirements.  Additionally,  failure to meet the  foregoing  asset  requirement
could  restrict the Fund's ability to pay dividends to Common  Shareholders  and
could lead to sales of portfolio  securities at inopportune times. The Preferred
Stock was callable at the  redemption  price at the option of the Fund after May
15, 2002. This Cumulative  Preferred Stock introduced  leverage into the capital
structure  of the  Fund.  This  leverage  tends to  magnify  both the  risks and
opportunities  to Common  Shareholders.  On November 12, 2002, the Fund redeemed
50% (600,000  shares) of its  outstanding 8% Cumulative  Preferred  Stock at the
redemption  price of $25.00  per  Preferred  Share plus  accumulated  and unpaid
dividends  through  the  redemption  date of $0.2555  per  Preferred  Share.  On
February 11, 2003,  the Fund redeemed the remaining 50% (600,000  shares) of its
outstanding  8.00% Cumulative  Preferred Stock at the redemption price of $25.25
per  Preferred  Share,  which  consisted  of $25.00  per  Preferred  Share  plus
accumulated  and  unpaid  dividends  through  the  redemption  date of $0.25 per
Preferred Share.

      On March 18, 2003,  the Fund received net proceeds of  $23,996,775  (after
underwriting  discounts of $787,500 and offering  expenses of $215,725) from the
public  offering of  1,000,000  shares of 6.00%  Series B  Cumulative  Preferred
Stock.  Commencing March 19, 2008 and thereafter,  the Fund, at its option,  may
redeem the 6.00% Series B Cumulative  Preferred Stock in whole or in part at the
redemption  price.  The Board of Directors has  authorized the repurchase in the
open  market at prices  less than the $25  liquidation  value of the  Cumulative
Preferred  Stock.  During the six months ended June 30, 2004, the Fund purchased
9,200 shares of 6.00% Series B Cumulative  Preferred Stock in the open market at
a cost of  $217,172  and an average  discount  of  approximately  5.55% from its
liquidation value. All repurchased shares of 6.00% Series B Cumulative Preferred
Stock have been retired.  At June 30, 2004, 990,800 shares of the 6.00% Series B
Cumulative  Preferred Stock were outstanding and accrued  dividends  amounted to
$12,385.


                                       13


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)

      On March 18, 2003,  the Fund received net proceeds of  $24,534,275  (after
underwriting  discounts of $250,000 and offering  expenses of $215,725) from the
public  offering  1,000  shares of Series C Auction  Rate  Cumulative  Preferred
Stock. The dividend rate, as set by the auction process, which is generally held
every 7 days, is expected to vary with short-term  interest rates.  The rates of
Series C Auction Rate Cumulative  Preferred Stock ranged from 1.02% to 1.45% for
the six months ended June 30, 2004. Existing shareholders may submit an order to
hold,  bid or sell  such  shares on each  auction  date.  Series C Auction  Rate
Cumulative  Preferred Stock  shareholders may also trade shares in the secondary
market. The Fund, at its option, may redeem the Series C Auction Rate Cumulative
Preferred Stock in whole or in part at the redemption price at any time.  During
the six months ended June 30, 2004,  the Fund did not  repurchase  any shares of
Series C Auction Rate Cumulative Preferred Stock. At June 30, 2004, 1,000 shares
of the Series C Auction Rate Cumulative  Preferred Stock were outstanding at the
annual dividend rate of 1.45% and accrued dividends amounted to $938.

      The holders of Cumulative Preferred Stock have voting rights equivalent to
those of the holders of Common Stock (one vote per share) and will vote together
with holders of shares of Common Stock as a single class. In addition,  the 1940
Act  requires  that along with  approval  of a majority of the holders of Common
Stock,  approval  of a  majority  of the  holders of any  outstanding  shares of
Cumulative  Preferred Stock,  voting separately as a class, would be required to
(a) adopt any plan of reorganization  that would adversely affect the Cumulative
Preferred Stock,  and (b) take any action requiring a vote of security  holders,
including,  among other  things,  changes in the Fund's  subclassification  as a
closed-end   investment  company  or  changes  in  its  fundamental   investment
restrictions.  The income  received  on the  Fund's  assets may vary in a manner
unrelated to the fixed rate, which could have either a beneficial or detrimental
impact on net investment income and gains available to common shareholders.

      Under  Emerging  Issues  Task  Force  (EITF)   promulgating   Topic  D-98,
Classification  and  Measurement of Redeemable  Securities,  which was issued on
July 19, 2001, preferred securities that are redeemable for cash or other assets
are to be  classified  outside  of  permanent  equity  to the  extent  that  the
redemption is at a fixed or  determinable  price and at the option of the holder
or upon the  occurrence of an event that is not solely within the control of the
issuer.  In  accordance  with the  guidance of the EITF,  the Fund's  Cumulative
Preferred  Stock  is  classified   outside  of  permanent   equity  (net  assets
attributable  to  common  stock  shareholders)  in  the  accompanying  financial
statements.

6. OTHER MATTERS.  On October 7, 2003,  the Fund's  Adviser  received a subpoena
from the Attorney  General of the State of New York  requesting  information  on
mutual fund shares trading practices. The Adviser has also received requests for
information from the SEC regarding  mutual fund trading  practices and valuation
of portfolio  securities.  The Adviser has responded to the  requests.  The Fund
does not believe that these matters will have a material  adverse  effect on the
Fund's financial position or the results of its operations.

7.  INDEMNIFICATIONS.  The Fund enters into  contracts that contain a variety of
indemnifications.  The Fund's  maximum  exposure  under  these  arrangements  is
unknown.  However, the Fund has not had prior claims or losses pursuant to these
contracts and expects the risk of loss to be remote.

8. RESTRICTED  SECURITIES.  At June 30, 2004, investments in securities included
issues  that  are  restricted  or  illiquid.  Restricted  securities  are  often
purchased  in  private  placement  transactions,  are not  registered  under the
Securities Act of 1933, may have  contractual  restrictions  on resale,  and are
valued under methods  approved by the Board as reflecting fair value. A security
may also be considered  illiquid if it lacks a readily available market. At June
30, 2004, the Fund held  investments in restricted and illiquid  securities that
were valued under approved methods by the Board, as follows:



                                                                                   ACQUISITION
   SHARES    ISSUER                                                                    DATE            COST          VALUE
   ------    ------                                                                -----------      --------       --------
                                                                                                       
    10,000   Artesyn Technologies, Sub. Deb. Cv., 5.500%, 08/15/10 .............     08/15/03       $ 10,757       $ 14,275
   400,000   IVAX Corp., Sub. Deb. Cv., 4.500%, 05/15/08 .......................     09/21/01        345,344        398,000
    10,000   Wynn Resorts, Sub. Deb. Cv., 6.000%, 07/15/15 .....................     07/14/03         10,284         18,988
   100,000   Fleetwood Enterprises Inc., Cv., 5.000%, 12/15/23 .................     12/17/03        100,000        151,500
    50,000   Commonwealth Telephone Enterprises Inc., Cv., 3.250%, 07/15/23 ....     07/29/03         49,638         51,000
                                                                                                                   --------
TOTAL RESTRICTED SECURITIES (0.64% OF NET ASSETS) ..............................                                   $633,763
                                                                                                                   ========



                                       14


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                        FINANCIAL HIGHLIGHTS (UNAUDITED)



SELECTED DATA FOR A FUND COMMON                           SIX MONTHS ENDED                   YEAR ENDED DECEMBER 31,
SHARE OUTSTANDING THROUGHOUT EACH PERIOD:                  JUNE 30, 2004     -----------------------------------------------------
                                                             (UNAUDITED)     2003(d)     2002       2001       2000          1999
                                                             -----------     -------    ------     ------     ------        ------
                                                                                                          
OPERATING PERFORMANCE:
  Net asset value, beginning of period ......................   $ 8.90       $ 8.44     $ 9.92     $10.02     $11.40        $11.45
                                                                ------       ------     ------     ------     ------        ------
  Net investment income .....................................     0.19         0.31       0.49       0.68       0.72          0.51
  Net realized and unrealized gain (loss) on investments ....    (0.12)        1.19      (0.76)      0.32      (0.52)         0.77
                                                                ------       ------     ------     ------     ------        ------
  Total from investment operations ..........................     0.07         1.50      (0.27)      1.00       0.20          1.28
                                                                ------       ------     ------     ------     ------        ------
DISTRIBUTIONS TO PREFERRED STOCK SHAREHOLDERS:
  Net investment income .....................................    (0.08)       (0.11)     (0.28)     (0.18)     (0.13)        (0.11)
  Net realized gain on investments ..........................       --        (0.03)        --      (0.12)     (0.17)        (0.19)
                                                                ------       ------     ------     ------     ------        ------
  Total distributions to preferred stock shareholders .......    (0.08)       (0.14)     (0.28)     (0.30)     (0.30)        (0.30)
                                                                ------       ------     ------     ------     ------        ------
NET INCREASE (DECREASE) IN NET ASSETS ATTRIBUTABLE TO
  COMMON STOCK SHAREHOLDERS RESULTING
  FROM OPERATIONS ...........................................    (0.01)        1.36      (0.55)      0.70      (0.10)         0.98
                                                                ------       ------     ------     ------     ------        ------
DISTRIBUTIONS TO COMMON STOCK SHAREHOLDERS:
  Net investment income .....................................    (0.11)       (0.17)     (0.27)     (0.48)     (0.57)        (0.39)
  Net realized gain on investments ..........................       --        (0.03)        --      (0.33)     (0.73)        (0.64)
  Return of capital .........................................    (0.29)*      (0.60)     (0.48)        --         --            --
                                                                ------       ------     ------     ------     ------        ------
  Total distributions to common stock shareholders ..........    (0.40)       (0.80)     (0.75)     (0.81)     (1.30)        (1.03)
                                                                ------       ------     ------     ------     ------        ------
CAPITAL SHARE TRANSACTIONS:
  Increase in net asset value from
    common stock share transactions .........................     0.02         0.02       0.02       0.01       0.02            --
  Decrease in net asset value from
    shares issued in rights offering ........................       --           --      (0.20)        --         --            --
  Increase in net asset value from repurchase of
    preferred shares ........................................     0.00(a)        --         --         --         --            --
  Offering costs for preferred shares charged
    to paid-in capital ......................................       --        (0.12)        --         --         --            --
                                                                ------       ------     ------     ------     ------        ------
  Total capital share transactions ..........................     0.02        (0.10)     (0.18)      0.01       0.02            --
                                                                ------       ------     ------     ------     ------        ------
  NET ASSET VALUE ATTRIBUTABLE TO COMMON STOCK
    SHAREHOLDERS, END OF PERIOD .............................   $ 8.51       $ 8.90     $ 8.44     $ 9.92     $10.02        $11.40
                                                                ======       ======     ======     ======     ======        ======
  Net asset value total return + ............................     0.11%        14.5%      (7.0)%      7.0%       0.0%(a)       9.4%
                                                                ======       ======     ======     ======     ======        ======
  Market value, end of period ...............................   $10.03       $10.54     $ 8.55     $10.90     $ 9.13        $10.56
                                                                ======       ======     ======     ======     ======        ======
  Total investment return ++ ................................     (1.0)%       33.9%     (14.2)%     29.1%      (1.7)%         3.2%
                                                                ======       ======     ======     ======     ======        ======


----------

 +    Based  on  net  asset  value  per  share,  adjusted  for  reinvestment  of
      distributions.  Total  return  for the period of less than one year is not
      annualized.

++    Based  on  market   value  per  share,   adjusted  for   reinvestment   of
      distributions.  Total  return  for the period of less than one year is not
      annualized.

(a)   Amount represents less than $0.005 per share.

(b)   Based on weekly prices.

(c)   Asset coverage is calculated by combining all series of preferred stock.

(d)   See Note 2 to Financial Statements (Swap Agreements).

(e)   Annualized.

*     Based  on  current  earnings and subject to change and reclassification at
      fiscal year end.

                 See accompanying notes to financial statements.


                                       15


             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                  FINANCIAL HIGHLIGHTS (CONTINUED) (UNAUDITED)



                                                           SIX MONTHS ENDED                 YEAR ENDED DECEMBER 31,
                                                            JUNE 30, 2004      ----------------------------------------------------
                                                              (UNAUDITED)       2003(d)     2002       2001       2000       1999
                                                              -----------      --------   --------   --------   --------   --------
                                                                                                         
RATIOS AND SUPPLEMENTAL DATA:
  Net assets including liquidation value of preferred
    shares, end of period (in 000's) ........................   $148,173       $151,658   $108,774   $110,074   $108,066   $120,179
  Net assets attributable to common shares,
    end of period (in 000's) ................................   $ 98,403       $101,658   $ 93,774   $ 80,074   $ 78,066   $ 90,179
  Ratio of net investment income to average
    net assets attributable to common stock .................       3.93%(e)       3.47%      5.32%      6.58%      6.49%      4.35%
  Ratio of operating expenses to average
    net assets attributable to common stock .................       1.53%(e)       1.93%      1.58%      1.46%      1.48%      1.80%
  Ratio of operating expenses to average total net assets
    including liquidation value of preferred shares .........       1.03%(e)       1.37%      1.15%      1.07%      1.10%      1.36%
  Portfolio turnover rate ...................................         21%            39%        56%        59%       169%       175%

PREFERRED STOCK:
  8.00% CUMULATIVE PREFERRED STOCK
  Liquidation value, end of period (in 000's) ...............         --             --   $ 15,000   $ 30,000   $ 30,000   $ 30,000
  Total shares outstanding (in 000's) .......................         --             --        600      1,200      1,200      1,200
  Liquidation preference per share ..........................         --             --   $  25.00   $  25.00   $  25.00   $  25.00
  Average market value (b) ..................................         --             --   $  25.83   $  25.80   $  24.31   $  25.36
  Asset coverage per share ..................................         --             --   $ 181.29   $  91.73   $  90.06   $ 100.15
  6.00% CUMULATIVE PREFERRED STOCK
  Liquidation value, end of period (in 000's) ...............   $ 24,770       $ 25,000         --         --         --         --
  Total shares outstanding (in 000's) .......................        991          1,000         --         --         --         --
  Liquidation preference per share ..........................   $  25.00       $  25.00         --         --         --         --
  Average market value (b) ..................................   $  24.83       $  25.33         --         --         --         --
  Asset coverage per share ..................................   $  74.43       $  75.83         --         --         --         --
  AUCTION RATE CUMULATIVE PREFERRED STOCK
  Liquidation value, end of period (in 000's) ...............   $ 25,000       $ 25,000         --         --         --         --
  Total shares outstanding (in 000's) .......................          1              1         --         --         --         --
  Liquidation preference per share ..........................   $ 25,000       $ 25,000         --         --         --         --
  Average market value (b) ..................................   $ 25,000       $ 25,000         --         --         --         --
  Asset coverage per share ..................................   $ 74,429       $ 75,829         --         --         --         --
  ASSET COVERAGE (c) ........................................        298%           303%       725%       367%       360%       401%


----------
 +    Based  on  net  asset  value  per  share,  adjusted  for  reinvestment  of
      distributions.  Total  return  for the period of less than one year is not
      annualized.

++    Based  on  market   value  per  share,   adjusted  for   reinvestment   of
      distributions.  Total  return  for the period of less than one year is not
      annualized.

(a)   Amount represents less than $0.005 per share.

(b)   Based on weekly prices.

(c)   Asset coverage is calculated by combining all series of preferred stock.

(d)   See Note 2 to Financial Statements (Swap Agreements).

(e)   Annualized.

                 See accompanying notes to financial statements.


                                       16


                         AUTOMATIC DIVIDEND REINVESTMENT
                        AND VOLUNTARY CASH PURCHASE PLAN

ENROLLMENT IN THE PLAN

      It is the policy of The Gabelli  Convertible  and Income  Securities  Fund
Inc.  ("Convertible  and  Income  Securities  Fund") to  automatically  reinvest
dividends. As a "registered"  shareholder you automatically become a participant
in the Convertible and Income Securities Fund's Automatic Dividend  Reinvestment
Plan (the "Plan").  The Plan authorizes the  Convertible  and Income  Securities
Fund to issue shares to participants  upon an income dividend or a capital gains
distribution  regardless  of whether  the shares are  trading at a discount or a
premium to net asset value. All  distributions to shareholders  whose shares are
registered in their own names will be automatically  reinvested  pursuant to the
Plan in additional  shares of the Convertible and Income  Securities  Fund. Plan
participants  may send their  stock  certificates  to  EquiServe  Trust  Company
("EquiServe")  to be held in their  dividend  reinvestment  account.  Registered
shareholders  wishing to receive  their  distribution  in cash must  submit this
request in writing to:

             The Gabelli Convertible and Income Securities Fund Inc.
                                  c/o EquiServe
                                 P.O. Box 43011
                            Providence, RI 02940-3011

      Shareholders  requesting this cash election must include the shareholder's
name and  address as they  appear on the share  certificate.  Shareholders  with
additional questions regarding the Plan may contact EquiServe at (800) 336-6983.

      SHAREHOLDERS WISHING TO LIQUIDATE REINVESTED SHARES held at EquiServe must
do so in  writing  or by  telephone.  Please  submit  your  request to the above
mentioned  address  or  telephone  number.  Include in your  request  your name,
address  and  account  number.  The  cost  to  liquidate  shares  is  $2.50  per
transaction as well as the brokerage commission incurred.  Brokerage charges are
expected to be less than the usual brokerage charge for such transactions.

      If your  shares  are held in the name of a broker,  bank or  nominee,  you
should contact such institution. If such institution is not participating in the
Plan,  your  account  will  be  credited  with  a cash  dividend.  In  order  to
participate in the Plan through such institution, it may be necessary for you to
have your shares taken out of "street name" and  re-registered in your own name.
Once  registered  in  your  own  name  your  dividends  will  be   automatically
reinvested. Certain brokers participate in the Plan. Shareholders holding shares
in "street name" at participating institutions will have dividends automatically
reinvested.  Shareholders  wishing  a cash  dividend  at such  institution  must
contact their broker to make this change.

      The number of shares of Common Stock  distributed to  participants  in the
Plan in lieu of cash dividends is determined in the following manner.  Under the
Plan,  whenever the market price of the Convertible and Income Securities Fund's
Common  Stock is equal to or  exceeds  net asset  value at the time  shares  are
valued for purposes of determining  the number of shares  equivalent to the cash
dividends  or capital  gains  distribution,  participants  are issued  shares of
Common Stock  valued at the greater of (i) the net asset value as most  recently
determined or (ii) 95% of the then current market price of the  Convertible  and
Income  Securities  Fund's Common Stock.  The valuation  date is the dividend or
distribution  payment  date or,  if that date is not a New York  Stock  Exchange
trading day, the next trading day. If the net asset value of the Common Stock at
the time of valuation exceeds the market price of the Common Stock, participants
will receive shares from the  Convertible  and Income  Securities Fund valued at
market price.  If the  Convertible  and Income  Securities Fund should declare a
dividend or capital gains distribution  payable only in cash, EquiServe will buy
Common Stock in the open


                                       17


market,  or on the New York Stock Exchange or elsewhere,  for the  participants'
accounts, except that EquiServe will endeavor to terminate purchases in the open
market and cause the Convertible  and Income  Securities Fund to issue shares at
net asset value if,  following the  commencement of such  purchases,  the market
value of the Common Stock exceeds the then current net asset value.

      The automatic  reinvestment  of dividends and capital gains  distributions
will not  relieve  participants  of any  income tax which may be payable on such
distributions.  A participant in the Plan will be treated for Federal income tax
purposes  as  having  received,  on a  dividend  payment  date,  a  dividend  or
distribution in an amount equal to the cash the participant  could have received
instead of shares.

      The Convertible and Income  Securities Fund reserves the right to amend or
terminate  the Plan as  applied  to any  voluntary  cash  payments  made and any
dividend or distribution paid subsequent to written notice of the change sent to
the  members  of the Plan at  least  90 days  before  the  record  date for such
dividend  or  distribution.  The  Plan  also may be  amended  or  terminated  by
EquiServe on at least 90 days' written notice to participants in the Plan.

VOLUNTARY CASH PURCHASE PLAN

      The  Voluntary  Cash  Purchase  Plan  is  yet  another   vehicle  for  our
shareholders  to  increase  their  investment  in  the  Convertible  and  Income
Securities  Fund. In order to  participate  in the Voluntary Cash Purchase Plan,
shareholders must have their shares registered in their own name.

      Participants in the Voluntary Cash Purchase Plan have the option of making
additional  cash payments to EquiServe for  investments in the  Convertible  and
Income Securities  Fund's shares at the then current market price.  Shareholders
may send an  amount  from $250 to  $10,000.  EquiServe  will use these  funds to
purchase  shares in the open  market on or about the 1st and 15th of each month.
EquiServe will charge each shareholder who participates  $0.75,  plus a pro rata
share of the brokerage  commissions.  Brokerage  charges for such  purchases are
expected to be less than the usual brokerage charge for such transactions. It is
suggested that any voluntary cash payments be sent to EquiServe, P.O. Box 43011,
Providence,   RI  02940-3011   such  that   EquiServe   receives  such  payments
approximately  10 days before the investment  date.  Funds not received at least
five days before the investment date shall be held for investment until the next
purchase  date. A payment may be withdrawn  without charge if notice is received
by EquiServe at least 48 hours before such payment is to be invested.

      For  more  information   regarding  the  Dividend  Reinvestment  Plan  and
Voluntary Cash Purchase Plan,  brochures are available by calling (914) 921-5070
or by writing directly to the Convertible and Income Securities Fund.


                                       18


                             DIRECTORS AND OFFICERS
             THE GABELLI CONVERTIBLE AND INCOME SECURITIES FUND INC.
                    ONE CORPORATE CENTER, RYE, NY 10580-1422

DIRECTORS
Mario J. Gabelli, CFA
   CHAIRMAN & CHIEF INVESTMENT OFFICER,
   GABELLI ASSET MANAGEMENT INC.

E. Val Cerutti
   CHIEF EXECUTIVE OFFICER,
   CERUTTI CONSULTANTS, INC.

Anthony J. Colavita
   ATTORNEY-AT-LAW,
   ANTHONY J. COLAVITA, P.C.

Dugald A. Fletcher
   PRESIDENT, FLETCHER & COMPANY, INC.

Karl Otto Pohl
   FORMER PRESIDENT, DEUTSCHE BUNDESBANK

Anthony R. Pustorino
   CERTIFIED PUBLIC ACCOUNTANT,
   PROFESSOR EMERITUS, PACE UNIVERSITY

Werner J. Roeder, MD
   VICE PRESIDENT/MEDICAL AFFAIRS,
   LAWRENCE HOSPITAL CENTER

Anthonie C. van Ekris
   MANAGING DIRECTOR,
   BALMAC INTERNATIONAL, INC.

Salvatore J. Zizza
   CHAIRMAN, HALLMARK ELECTRICAL SUPPLIES CORP.

OFFICERS
Bruce N. Alpert
   PRESIDENT & TREASURER

Peter W. Latartara
   VICE PRESIDENT

A. Hartswell Woodson, III
   ASSOCIATE PORTFOLIO MANAGER

James E. McKee
   SECRETARY

INVESTMENT ADVISER
Gabelli Funds, LLC
One Corporate Center
Rye, New York 10580-1422

CUSTODIAN
State Street Bank and Trust Company

COUNSEL
Skadden, Arps, Slate, Meagher & Flom LLP

TRANSFER AGENT AND REGISTRAR
EquiServe Trust Company

STOCK EXCHANGE LISTING

                             Common      6.00% Preferred
                             ------      ---------------
NYSE-Symbol:                   GCV           GCV Pr B
Shares Outstanding:        11,565,300         990,800

The Net Asset Value  appears in the  Publicly  Traded  Funds  column,  under the
heading  "Convertible  Securities  Funds," in Sunday's The New York Times and in
Monday's  The  Wall  Street  Journal.  It is  also  listed  in  Barron's  Mutual
Funds/Closed End Funds section under the heading "Convertible Securities Funds."

The Net Asset Value may be obtained each day by calling (914) 921-5071.

--------------------------------------------------------------------------------
Notice  is hereby  given in  accordance  with  Section  23(c) of the  Investment
Company Act of 1940, as amended, that the Convertible and Income Securities Fund
may from time to time  purchase  shares of its common  stock in the open  market
when the Convertible and Income Securities Fund shares are trading at a discount
of 10% or more from the net  asset  value of the  shares.  The  Convertible  and
Income  Securities  Fund may  also,  from time to time,  purchase  shares of its
Cumulative  Preferred  Stock in the open market when the shares are trading at a
discount to the Liquidation Value of $25.00.
--------------------------------------------------------------------------------


ITEM 2.  CODE OF ETHICS.

Not applicable.



ITEM 3.  AUDIT COMMITTEE FINANCIAL EXPERT.

Not applicable.



ITEM 4.  PRINCIPAL ACCOUNTANT FEES AND SERVICES.

Not applicable.



ITEM 5.  AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable.



ITEM 6.  SCHEDULE OF INVESTMENTS

Not applicable.



ITEM 7.  DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END
         MANAGEMENT INVESTMENT COMPANIES.

Not applicable.




ITEM 8.  PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT
         COMPANY AND AFFILIATED PURCHASERS.




                                           REGISTRANT PURCHASES OF EQUITY SECURITIES
=============================================================================================================================
                                                                         
                                                                                          (D) MAXIMUM NUMBER (OR
                                                       (C) TOTAL NUMBER OF SHARES    APPROXIMATE DOLLAR VALUE) OF SHARES
                (A) TOTAL NUMBER      (B) AVERAGE     (OR UNITS) PURCHASED AS PART       (OR UNITS) THAT MAY YET BE
                  OF SHARES (OR      PRICE PAID PER    OF PUBLICLY ANNOUNCED PLANS       PURCHASED UNDER THE PLANS OR
     PERIOD      UNITS) PURCHASED    SHARE (OR UNIT)           OR PROGRAMS                         PROGRAMS
=============================================================================================================================
Month #1          Common - N/A        Common - N/A     Common - N/A                   Preferred Series B - 1,000,000
01/01/04
through 01/31/04  Preferred Series B  Preferred        Preferred Series B - N/A       Common - 11,421,647
                  - N/A               Series B - N/A
=============================================================================================================================
Month #2          Common - N/A        Common - N/A     Common - N/A                   Preferred Series B - 1,000,000
02/01/04
through 02/29/04  Preferred Series B  Preferred        Preferred Series B - N/A       Common - 11,421,647
                  - N/A               Series B - N/A
=============================================================================================================================
Month #3          Common - N/A        Common - N/A     Common - N/A                   Preferred Series B - 1,000,000
03/01/04
through 03/31/04  Preferred Series B  Preferred        Preferred Series B - N/A       Common - 11,421,647
                  - N/A               Series B - N/A
=============================================================================================================================
Month #4          Common - N/A        Common - N/A     Common - N/A                   Preferred Series B - 1,000,000 -
04/01/04                                                                              2,100 = 997,900
through 04/30/04  Preferred Series B  Preferred        Preferred Series B - 2,100
                  - 2,100             Series B -                                      Common - 11,489,948
                                      $24.2595
=============================================================================================================================
Month #5          Common - N/A        Common - N/A     Common - N/A                   Preferred Series B - 997,900 - 4,400
05/01/04                                                                              = 993,500
through 05/31/04  Preferred Series B  Preferred        Preferred Series B - 4,400
                  - 4,400             Series B -                                      Common - 11,489,948
                                      $22.9382
=============================================================================================================================
Month #6          Common - N/A        Common - N/A     Common - N/A                   Preferred Series B - 993,500 - 2,700
06/01/04                                                                              = 990,800
through 06/30/04  Preferred Series B  Preferred        Preferred Series B - 2,700
                  - 2,700             Series B -                                      Common - 11,489,948
                                      $24.1848
=============================================================================================================================
Total             Common - N/A        Common - N/A     Common - N/A                    N/A

                  Preferred Series B  Preferred        Preferred Series B - 9,200
                  - 9,200             Series B -
                                      $23.6057
=============================================================================================================================


a. The date each plan or program  was  announced  - The notice of the  potential
repurchase  of common  and  preferred  shares  occurs  quarterly  in the  Fund's
quarterly report in accordance with Section 23 (c) of the Investment Company Act
of 1940, as amended.

b. The  dollar  amount  (or share or unit  amount)  approved - Any or all common
shares  outstanding may be repurchased when the Fund's common shares are trading
at a discount of 10% or more from the net asset value of the shares.

   Any or all preferred shares outstanding may be  repurchased  when the Fund's
preferred shares are trading at a discount to the liquidation value of $25.00.

c. The expiration date (if any) of each plan or program - The Fund's  repurchase
plans are ongoing.

d. Each plan or program  that has expired during the period covered by the table
- The Fund's repurchase plans are ongoing.

e. Each plan or program the  registrant  has  determined  to terminate  prior to
expiration,  or under  which the  registrant  does not  intend  to make  further
purchases. - The Fund's repurchase plans are ongoing.


ITEM 9.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

There have been no material  changes to the procedures by which the shareholders
may  recommend  nominees to the  registrant's  Board of  Directors,  where those
changes were  implemented  after the  registrant  last  provided  disclosure  in
response to the  requirements  of Item  7(d)(2)(ii)(G)  of Schedule  14A (17 CFR
240.14a-101), or this Item.



ITEM 10. CONTROLS AND PROCEDURES.

(a)      The registrant's  principal executive and principal financial officers,
         or  persons  performing  similar  functions,  have  concluded  that the
         registrant's  disclosure  controls and  procedures  (as defined in Rule
         30a-3(c)  under the  Investment  Company Act of 1940,  as amended  (the
         "1940 Act") (17 CFR 270.30a-3(c)))  are effective,  as of a date within
         90 days of the filing date of the report that  includes the  disclosure
         required by this paragraph, based on their evaluation of these controls
         and  procedures  required by Rule  30a-3(b)  under the 1940 Act (17 CFR
         270.30a-3(b))  and Rules  13a-15(b) or 15d-15(b)  under the  Securities
         Exchange   Act  of  1934,   as  amended   (17  CFR   240.13a-15(b)   or
         240.15d-15(b)).


(b)      There  were  no  changes  in the  registrant's  internal  control  over
         financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17
         CFR  270.30a-3(d))  that occurred during the  registrant's  last fiscal
         half-year (the  registrant's  second fiscal half-year in the case of an
         annual report) that has materially affected, or is reasonably likely to
         materially  affect,  the  registrant's  internal control over financial
         reporting.


ITEM 11. EXHIBITS.

     (a)(1)   Not applicable.

     (a)(2)   Certifications  pursuant to Rule  30a-2(a)  under the 1940 Act and
              Section 302 of the Sarbanes-Oxley Act of 2002 are attached hereto.

     (a)(3)   Not applicable.

     (b)      Certifications  pursuant to Rule  30a-2(a)  under the 1940 Act and
              Section 906 of the Sarbanes-Oxley Act of 2002 are attached hereto.






                                   SIGNATURES

Pursuant to the  requirements  of the  Securities  Exchange  Act of 1934 and the
Investment Company Act of 1940, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.

(registrant)               The Gabelli Convertible and Income Securities Fund
                           Inc.
                           -----------------------------------------------------

By (Signature and Title)*  /s/ BRUCE N. ALPERT
                           -----------------------------------------------------
                           Bruce N. Alpert, Principal Executive Officer


Date                       September 7, 2004
    ----------------------------------------------------------------------------


Pursuant to the  requirements  of the  Securities  Exchange  Act of 1934 and the
Investment  Company  Act of  1940,  this  report  has been  signed  below by the
following  persons on behalf of the  registrant and in the capacities and on the
dates indicated.


By (Signature and Title)*  /s/ BRUCE N. ALPERT
                           -----------------------------------------------------
                           Bruce N. Alpert, Principal Executive Officer and
                           Principal Financial Officer


Date                       September 7, 2004
    ----------------------------------------------------------------------------



* Print the name and title of each signing officer under his or her signature.