TILAPTA. ] 49 



C. Caudal emarginate; third anal spine longer than longest dorsal. 

 D. XIII-XIV 10-13 ; A. Ill 7-9 ; Sc. 32- 



34 drrfj last dorsal spine not more than 



2£ times in length of head 87. T. oligacanthm, Blkr., p. 258. 



D. XIII-XV 12-14 ; A. Ill 10-12 ; Sc. 33- 

 36 . ° : last dorsal spine 2i to 3 times 

 in length of head 88. T. betsileana, Blgr., p. 259. 



D. Caudal deeply notched, often suhcrescentic ; eye not more than 3 times in 



length of head. 



1. 31-34 scales in longitudinal series ; 8-12 gill-rakers on lower part of 



anterior arch. 

 D. XV-XVII 10-11 ; A. Ill 8-9 ; Sc. 32- 



34 p; eye 2\ to 2| times in length of [p. 261. 



head; caudal peduncle longer than deep . 89. T. macroplithalma, Blgi"-, 

 D. XV 12 ; A. Ill 9 ; Sc. 31-32 § ; eye 2£ 



times in length of head ; caudal peduncle 



as long as deep 90. T. brevis, Blgr., p. 262. 



2. 34-65 scales in longitudinal series ; 13-17 gill-rakers. 



D. XVI-XVII 11-12 ; A. Ill 9 ; Sc. 34- 



3--4 



1jTj2 ; e J e 2f to 3 times in length of 



head ; caudal peduncle If times as long 



as deep 91. T. inornata, Blgr., p. 263. 



D. XVI 11 ; A. Ill 9 ; Sc. 40 j? ; eye 3 times 



in length of head ; caudal peduncle 1 \ 



times as long as deep 92. T. trematocepliala, Blgr.. p. 264. 



D. XII-XIII 14 ; A. Ill 8-9 ; Sc. 39- 



40 rj-yg ; eye 2 -J- times in length of head ; 



caudal peduncle nearly twice as long as 



deep 93. T. hoops, Blgr., p. 265. 



D. XIII-XIV 13-14 ; A. Ill 9-10 ; Sc. 55- 



65 '" . ; eye 2J to 2§ times in length 



of head ; caudal peduncle a little longer 



than deep 94. T. grandoculis, Blgr., p. 266. 



1. TILAPIA HUNTERI. 



Oreochromis hunteri, Giinth. Proc. Zool. Soc. 1889, p. 70 ; Pellegr. Mem. Soc. 



Zool. France, xvi. 1904, p. 354. 

 Tilapia hunteri, Bouleng. Proc. Zool. Soc. 1899, p. 110. 



Depth of body equal to length of head, 3} times in total length. 



