TILAPIA. 14] 



** Giiudiil j>eduncle deeper tlian long. 

 t 18-27 giU-nikers; Sc. 29-3i — I. 

 D. XV-XVII 12-14; A. Ill 10-12; Sc. 30- 

 ''J: ]jzil ; nioutli extending to below 



nostril, or slightly beyond 13. 7'. c/aWcea, Art,, p. 1G9. 



I). XV-XVII 11-13; A. Ill 9-11; «e. 29- 



3—3- 

 33 j^'q ; mouth extending to between 



nostril and eye 14. 7'. andersomi, Cast., p. 171. 



tt ]r,-21 gill-rukers ; Sc. 27-31 ^^. 



1). XIV-XVII 11-13; A. Ill 8-11 ; Sc. 27- 



30 ^t^; 1.5-19 gill-rakers; depth of 



body 2 to 2\ times in total length, much 



greater than length of head 15. 7'. /icMf^e/o^/, A. Duin., p. 17.^. 



D. XIV-XVI 12-13 : A. Ill 9-11 ; Sc. 28- 



31 {',■_■'., ; 18-21 gill-rakers ; depth of 



body 2| to 2 i times in total length . . . 10. 7'. midti/asciata, Gilir.,]). 11 :'>. 

 1). XV-XVI 10-12 ; A. Ill 7-9 ; Sc. 27- 

 30 j5=§^ ; 15-18 gill-rakers ; depth of 



body 21 to 2^ times in total length . . . 17. 7". wacr-ocfp/ia/a, Blkr., p. 176. 

 y. Outer teeth rather large (44 to 00 in upper jaw) ; 3 or 4 series of 

 scales on t!ie cheek ; 16-18 gill-rakers; caudal rounded. 

 D. XVI 13 ; A. Ill 10 ; Sc. 33 || ; pectoral a 



little longer than head 18. 7'. /(^JHieMsi*-, Pellegr., j). 178. 



I). XVI 12-13; A. Ill 9-10; Sc. 30-31 g ; 



pectoral not longer than head . . . .19. 1\ hau.yi, Pellegr., p. 1 78, 

 h. Caudal densely scaled ; 15-22 gill-rakers. 

 D. XVII-XVIII 11; A. Ill 10; Sc. 33- 

 35 ^:j-j7, ; 3 or 4 series of scales on the 

 cheek ; caudal peduncle longer than deep; [p. 180. 



caudal emarginate 20. 7". avromarginata, Blgr., 



D. XVI 10-12 ; A. Ill 8-9 ; Sc. 29-32 '^^^■, 

 2 or 3 series of scales on the cheek ; teeth 

 extremely slender ; caudal peduncle deeper 



than long ; caudal rounded 21. 7'. Zf^^it/ura, Blgr., p. 181. 



D. XVI 12 ; A. Ill 10 ; Sc. 29 ^| ; 2 series of 

 scales on the cheek ; caudal peduncle 

 deeper than long ; caudal emarginate, 

 pointed above, rounded beneath , . . . 22. T. houlengeri, Pellegr., p. 182. 



