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

                                    Form 13F

                              Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: Dedember 31, 2007

Check here if Amendment [  ]; Amendment Number:
This Amendment (Check only one.): [  ] is a restatement.
                                  [  ] adds new holdings entries.

Institutional Investment Manager Filing this Report:

Name:    The Bank of Nova Scotia
Address: 40 King St. West
         Scotia Plaza 9th Floor
         Toronto, Ontario  M5H 1H1

13F File Number:  28-11475

The institutional investment manager filing this report and the person by whom
it is signed hereby represent that the person signing the report is authorized
to submit it, that all information contained herein is true, correct and
complete, and that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:

Name:      Abdurrehman Muhammadi
Title:     Vice President, Financial Accounting and Reporting
Phone:     416-866-7898

Signature, Place, and Date of Signing:

     /s/ Abdurrehman Muhammadi     Toronto, On, Canada     February 07, 2008


Report Type (Check only one.):

[  ]         13F HOLDINGS REPORT.

[  ]         13F NOTICE.

[ X]         13F COMBINATION REPORT.


List of Other Managers Reporting for this Manager:

       Form 13F File Number          Name

       28-11461                      Scotia Capital Inc.
       28-11460                      Scotia Cassels Investment Counsel Ltd.
       28-11459                      Bank of Nova Scotia Trust Co.



                              FORM 13F SUMMARY PAGE


Report Summary:

Number of Other Included Managers:         1

Form13F Information Table Entry Total:     156

Form13F Information Table Value Total:     $19,392,449 (thousands)


List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F file number(s) of all
institutional managers with respect to which this report is filed, other
than the manager filing this report.

No.  13F File Number               Name


     28-11472                      BNS Investment Inc.




                                    
                                                     FORM 13F INFORMATION TABLE
                                                             VALUE  SHARES/ SH/ PUT/ INVSTMT  OTHER            VOTING AUTHORITY
NAME OF ISSUER                 TITLE OF CLASS   CUSIP     (x$1000)  PRN AMT PRN CALL DSCRETN MANAGERS         SOLE   SHARED     NONE
------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- --------
3M CO                          COM              88579Y101     1457    17245 SH       DEFINED 1               17245        0        0
AGNICO EAGLE MINES LTD         COM              008474108    12226   222707 SH       SOLE                   222707        0        0
AGRIUM INC                     COM              008916108    18222   252036 SH       SOLE                   252036        0        0
ALABAMA NATL BANCORP DELA      COM              010317105     1039    13353 SH       SOLE                    13353        0        0
ALCOA INC                      COM              013817101      617    16845 SH       DEFINED 1               16845        0        0
ALTRIA GROUP INC               COM              02209S103     1268    16745 SH       DEFINED 1               16745        0        0
AMERICAN EXPRESS CO            COM              025816109      873    16745 SH       DEFINED 1               16745        0        0
AMERICAN INTL GROUP INC        COM              026874107      977    16715 SH       DEFINED 1               16715        0        0
AMGEN INC                      COM              031162100     4644   100000 SH       SOLE                   100000        0        0
ANADARKO PETE CORP             COM              032511107     9854   150000 SH       SOLE                   150000        0        0
ANHEUSER BUSCH COS INC         COM              035229103     3926    75000 SH       SOLE                    75000        0        0
AT&T INC                       COM              00206R102      718    17245 SH       DEFINED 1               17245        0        0
BALLARD PWR SYS INC            COM              05858H104      332    63000 SH       SOLE                    63000        0        0
BANK MONTREAL QUE              COM              063671101  1235878 21749101 SH       SOLE                 21749101        0        0
BANK OF AMERICA CORPORATION    COM              060505104    14441   350000 SH       SOLE                   350000        0        0
BARRICK GOLD CORP              COM              067901108   166840  3958588 SH       SOLE                  3958588        0        0
BCE INC                        COM NEW          05534B760  1403178 35081222 SH       SOLE                 35081222        0        0
BCE INC                        COM NEW          05534B760     5620   140500 SH       SOLE    1              140500        0        0
BIOVAIL CORP                   COM              09067J109    62211  4616010 SH       SOLE                  4616010        0        0
BOEING CO                      COM              097023105     1468    16745 SH       DEFINED 1               16745        0        0
BRISTOL MYERS SQUIBB CO        COM              110122108     1989    75000 SH       SOLE                    75000        0        0
BROOKFIELD ASSET MGMT INC      CL A LTD VT SH   112585104   742308 20757399 SH       SOLE                 20757399        0        0
BROOKFIELD PPTYS CORP          COM              112900105    24505  1263885 SH       SOLE                  1263885        0        0
CAE INC                        COM              124765108    22352  1664757 SH       SOLE                  1664757        0        0
CAMECO CORP                    COM              13321L108    39737   995539 SH       SOLE                   995539        0        0
CANADIAN NAT RES LTD           COM              136385101   194933  2662402 SH       SOLE                  2662402        0        0
CANADIAN NATL RY CO            COM              136375102   338712  7197618 SH       SOLE                  7197618        0        0
CANADIAN PAC RY LTD            COM              13645T100    51660   797428 SH       SOLE                   797428        0        0
CANETIC RES TR                 COM              137513107     7965   590100 SH       SOLE                   590100        0        0
CATERPILLAR INC DEL            COM              149123101     1254    17240 SH       DEFINED 1               17240        0        0
CDN IMPERIAL BK OF COMMERCE    COM              136069101  1051687 14777280 SH       SOLE                 14777280        0        0
CEMEX SAB DE CV                SPON ADR NEW     151290889    14864   575000 SH       SOLE                   575000        0        0
CHC HELICOPTER CORP            CL A SUB VTG     12541C203    29766  1170000 SH       SOLE                  1170000        0        0
CHESAPEAKE ENERGY CORP         COM              165167107     3920   100000 SH       SOLE                   100000        0        0
CITIGROUP INC                  COM              172967101      483    16330 SH       DEFINED 1               16330        0        0
CITIGROUP INC                  COM              172967101    19136   650000 SH       SOLE                   650000        0        0
CLEARPOINT BUSINESS RES INC    COM              185061108      797   840000 SH       SOLE                   840000        0        0
COCA COLA CO                   COM              191216100     3069    50000 SH       SOLE                    50000        0        0
COCA COLA CO                   COM              191216100     1091    17745 SH       DEFINED 1               17745        0        0
COGNOS INC                     COM              19244C109     8328   144531 SH       SOLE                   144531        0        0
COMPANHIA VALE DO RIO DOCE     SPONSORED ADR    204412209     1437    44000 SH       SOLE                    44000        0        0
COMPANIA DE MINAS BUENAVENTU   SPONSORED ADR    204448104     2493    42619 SH       DEFINED 1               42619        0        0
CONCUR TECHNOLOGIES INC        COM              206708109      533    14709 SH       SOLE                    14709        0        0
CORUS ENTERTAINMENT INC        COM CL B NON VTG 220874101    16248   333333 SH       SOLE                   333333        0        0
CVS CAREMARK CORPORATION       COM              126650100     5963   150000 SH       SOLE                   150000        0        0
DISNEY WALT CO                 COM DISNEY       254687106      542    16745 SH       DEFINED 1               16745        0        0
DOW CHEM CO                    COM              260543103     2957    75000 SH       SOLE                    75000        0        0
DU PONT E I DE NEMOURS & CO    COM              263534109      744    16845 SH       DEFINED 1               16845        0        0
EL PASO CORP                   COM              28336L109     3448   200000 SH       SOLE                   200000        0        0
ENBRIDGE INC                   COM              29250N105   645393 15990463 SH       SOLE                 15990463        0        0
ENCANA CORP                    COM              292505104   331770  4872362 SH       SOLE                  4872362        0        0
ENERPLUS RES FD                UNIT TR G NEW    29274D604    32595   810422 SH       SOLE                   810422        0        0
ENSCO INTL INC                 COM              26874Q100     8943   150000 SH       SOLE                   150000        0        0
ENTERRA ENERGY TR              TR UNIT          29381P102      261   225000 SH       SOLE                   225000        0        0
ERICSSON L M TEL CO            ADR B SEK 10     294821608     2335   100000 SH       SOLE                   100000        0        0
EXXON MOBIL CORP               COM              30231G102     1666    17745 SH       DEFINED 1               17745        0        0
FIRSTSERVICE CORP              SUB VTG SH       33761N109      373    12200 SH       SOLE                    12200        0        0
FLEXTRONICS INTL LTD           ORD              Y2573F102     1809   150000 SH       SOLE                   150000        0        0
FORDING CDN COAL TR            TR UNIT          345425102    11465   296120 SH       SOLE                   296120        0        0
GENERAL ELECTRIC CO            COM              369604103      626    16845 SH       DEFINED 1               16845        0        0
GENERAL ELECTRIC CO            COM              369604103      927    25000 SH       SOLE                    25000        0        0
GENERAL MTRS CORP              COM              370442105      420    16845 SH       DEFINED 1               16845        0        0
GENEREX BIOTECHNOLOGY CP DEL   COM              371485103     2204  1360300 SH       SOLE                  1360300        0        0
GILDAN ACTIVEWEAR INC          COM              375916103     6695   162100 SH       SOLE                   162100        0        0
GOLDCORP INC NEW               COM              380956409    47894  1404652 SH       SOLE                  1404652        0        0
HALLIBURTON CO                 COM              406216101     7582   200000 SH       SOLE                   200000        0        0
HARRY WINSTON DIAMOND CORP     COM              41587B100    10174   310800 SH       SOLE                   310800        0        0
HARVEST ENERGY TR              TRUST UNIT       41752X101    12291   590609 SH       SOLE                   590609        0        0
HEWLETT PACKARD CO             COM              428236103      855    16895 SH       DEFINED 1               16895        0        0
HOME DEPOT INC                 COM              437076102     5388   200000 SH       SOLE                   200000        0        0
HOME DEPOT INC                 COM              437076102      479    17745 SH       DEFINED 1               17745        0        0
HONEYWELL INTL INC             COM              438516106     1033    16745 SH       DEFINED 1               16745        0        0
IMPERIAL OIL LTD               COM NEW          453038408   472628  8577734 SH       SOLE                  8577734        0        0
INTEL CORP                     COM              458140100      447    16745 SH       DEFINED 1               16745        0        0
INTEL CORP                     COM              458140100     2666   100000 SH       SOLE                   100000        0        0
INTERNATIONAL BUSINESS MACHS   COM              459200101     1814    16745 SH       DEFINED 1               16745        0        0
INTEROIL CORP                  COM              460951106     5144   265470 SH       SOLE                   265470        0        0
JOHNSON & JOHNSON              COM              478160104    11673   175000 SH       SOLE                   175000        0        0
JOHNSON & JOHNSON              COM              478160104     1119    16745 SH       DEFINED 1               16745        0        0
JP MORGAN CHASE & CO           COM              46625H100      733    16745 SH       DEFINED 1               16745        0        0
KINROSS GOLD CORP              COM NO PAR       496902404    17402   942633 SH       SOLE                   942633        0        0
LULULEMON ATHLETICA INC        COM              550021109     8391   175000 SH       SOLE                   175000        0        0
LUNDIN MINING CORP             COM              550372106     5017   521353 SH       SOLE                   521353        0        0
MAGNA INTL INC                 CL A             559222401      243     3000 SH       SOLE                     3000        0        0
MANULIFE FINL CORP             COM              56501R106  2099792 51306974 SH       SOLE                 51306974        0        0
MCDONALDS CORP                 COM              580135101      989    16745 SH       DEFINED 1               16745        0        0
MDS INC                        COM              55269P302     7115   367548 SH       SOLE                   367548        0        0
MERCK & CO INC                 COM              589331107     1004    17245 SH       DEFINED 1               17245        0        0
METHANEX CORP                  COM              59151K108    44483  1599998 SH       SOLE                  1599998        0        0
MI DEVS INC                    CL A SUB VTG     55304X104    26857   959412 SH       SOLE                   959412        0        0
MICROSOFT CORP                 COM              594918104      597    16745 SH       DEFINED 1               16745        0        0
MINEFINDERS LTD                COM              602900102     1132   100000 SH       SOLE                   100000        0        0
MOLSON COORS BREWING CO        CL B             60871R209     3313    64270 SH       SOLE                    64270        0        0
MOODYS CORP                    COM              615369105      893    25000 SH       SOLE                    25000        0        0
NEUROCHEM INC                  COM              64125K101      546   245900 SH       SOLE                   245900        0        0
NEW GOLD INC CDA               COM              644535106     1158   225000 SH       SOLE                   225000        0        0
NEXEN INC                      COM              65334H102   101413  3131841 SH       SOLE                  3131841        0        0
NISOURCE INC                   COM              65473P105     5667   300000 SH       SOLE                   300000        0        0
NORTEL NETWORKS CORP NEW       COM NEW          656568508    10346   684664 SH       SOLE                   684664        0        0
NORTHERN DYNASTY MINERALS LT   COM NEW          66510M204     1976   150000 SH       SOLE                   150000        0        0
NOVA CHEMICALS CORP            COM              66977W109    58001  1787842 SH       SOLE                  1787842        0        0
OPEN TEXT CORP                 COM              683715106     5793   183000 SH       SOLE                   183000        0        0
ORBITAL SCIENCES CORP          COM              685564106      356    14500 SH       DEFINED 1                   0        0    14500
PATTERSON UTI ENERGY INC       COM              703481101     5856   300000 SH       SOLE                   300000        0        0
PENGROWTH ENERGY TR            TR UNIT NEW      706902509     1511    85000 SH       SOLE                    85000        0        0
PENN WEST ENERGY TR            TR UNIT          707885109    18672   716329 SH       SOLE                   716329        0        0
PETRO-CDA                      COM              71644E102   160167  2981753 SH       SOLE                  2981753        0        0
PFIZER INC                     COM              717081103      393    17245 SH       DEFINED 1               17245        0        0
PFIZER INC                     COM              717081103    19889   875000 SH       SOLE                   875000        0        0
POPULAR INC                    COM              733174106     1855   175000 SH       SOLE                   175000        0        0
POTASH CORP SASK INC           COM              73755L107   153705  1061869 SH       SOLE                  1061869        0        0
PRECISION DRILLING TR          TR UNIT          740215108     1486    97652 SH       SOLE                    97652        0        0
PRIMEWEST ENERGY TR            TR UNIT NEW      741930309     7357   270900 SH       SOLE                   270900        0        0
PROCTER & GAMBLE CO            COM              742718109     1229    16695 SH       DEFINED 1               16695        0        0
PROVIDENT ENERGY TR            TR UNIT          74386K104    10465  1039500 SH       SOLE                  1039500        0        0
QLOGIC CORP                    COM              747277101     1420   100000 SH       SOLE                   100000        0        0
QUALITY SYS INC                COM              747582104     3049   100000 SH       SOLE                   100000        0        0
QUEBECOR WORLD INC             COM NON-VTG      748203106     1008   564334 SH       SOLE                   564334        0        0
RESEARCH IN MOTION LTD         COM              760975102    84202   741553 SH       SOLE                   741553        0        0
ROGERS COMMUNICATIONS INC      CL B             775109200    40299   888054 SH       SOLE                   888054        0        0
ROYAL BK CDA MONTREAL QUE      COM              780087102  2930480 57252352 SH       SOLE                 57252352        0        0
SCHERING PLOUGH CORP           COM              806605101     1421    53325 SH       SOLE                    53325        0        0
SHAW COMMUNICATIONS INC        CL B CONV        82028K200    16644   698166 SH       SOLE                   698166        0        0
SHERWIN WILLIAMS CO            COM              824348106     5804   100000 SH       SOLE                   100000        0        0
SILICON IMAGE INC              COM              82705T102      452   100000 SH       SOLE                   100000        0        0
SILVER WHEATON CORP            COM              828336107     1293    76294 SH       SOLE                    76294        0        0
SMTC CORP                      COM NEW          832682207      741   469082 SH       SOLE                   469082        0        0
SOURCE INTERLINK COS INC       COM NEW          836151209      173    60035 SH       SOLE                    60035        0        0
SOUTHERN COPPER CORP           COM              84265V105      850     8000 SH       DEFINED 1                8000        0        0
SPDR TR                        UNIT SER 1       78462F103     1873    12810 SH       SOLE                    12810        0        0
SUN LIFE FINL INC              COM              866796105  1065498 18959395 SH       SOLE                 18959395        0        0
SUNCOR ENERGY INC              COM              867229106   239434  2199622 SH       SOLE                  2199622        0        0
SUNOCO INC                     COM              86764P109    10866   150000 SH       SOLE                   150000        0        0
TALISMAN ENERGY INC            COM              87425E103   430529 23207355 SH       SOLE                 23207355        0        0
TATA MTRS LTD                  SPONSORED ADR    876568502     2829   150000 SH       SOLE                   150000        0        0
TECK COMINCO LTD               CL B             878742204   516053 14438870 SH       SOLE                 14438870        0        0
TELUS CORP                     NON-VTG SHS      87971M202   222853  4601445 SH       SOLE                  4601445        0        0
THOMSON CORP                   COM              884903105   404590  9954582 SH       SOLE                  9954582        0        0
TIM HORTONS INC                COM              88706M103    10836   293175 SH       SOLE                   293175        0        0
TONGJITANG CHINESE MED CO      SPON ADR         89025E103     1330   135000 SH       SOLE                   135000        0        0
TORONTO DOMINION BK ONT        COM NEW          891160509  2242642 31987502 SH       SOLE                 31987502        0        0
TRANSALTA CORP                 COM              89346D107   211775  6294844 SH       SOLE                  6294844        0        0
TRANSALTA CORP                 COM              89346D107    68968  2050000 SH       SOLE    1             2050000        0        0
TRANSCANADA CORP               COM              89353D107   835515 20430360 SH       SOLE                 20430360        0        0
TRANSCANADA CORP               COM              89353D107    35784   875000 SH       SOLE    1              875000        0        0
U S G CORP                     COM NEW          903293405     2863    80000 SH       SOLE                    80000        0        0
UNITED TECHNOLOGIES CORP       COM              913017109     1323    17240 SH       DEFINED 1               17240        0        0
VALERO ENERGY CORP NEW         COM              91913Y100     7003   100000 SH       SOLE                   100000        0        0
VERIZON COMMUNICATIONS         COM              92343V104      733    16745 SH       DEFINED 1               16745        0        0
WACHOVIA CORP NEW              COM              929903102     3803   100000 SH       SOLE                   100000        0        0
WAL MART STORES INC            COM              931142103      817    17145 SH       DEFINED 1               17145        0        0
WAL MART STORES INC            COM              931142103    15447   325000 SH       SOLE                   325000        0        0
WEIGHT WATCHERS INTL INC NEW   COM              948626106      883    19534 SH       DEFINED 1                   0        0    19534
WHOLE FOODS MKT INC            COM              966837106     2040    50000 SH       SOLE                    50000        0        0
YAMANA GOLD INC                COM              98462Y100    13539  1041219 SH       SOLE                  1041219        0        0
ZALE CORP NEW                  COM              988858106     1606   100000 SH       SOLE                   100000        0        0