TTLAPTA. J 49 



C. Caudal emarg'nate ; third anal spine longer than longest dorsal. 

 D. Xlll-XrV 10-13 ; A. Ill 7-9 ; Sc. 32- 



34 °~ ^ ; last dorsal spine not more than 



2^ times in length ot head 87. T. oligacantlius, Blkr., p. 258. 



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

 36 TT^^ ; last dorsal spine 2\ to 3 times 

 in length of head 88. T. 6^?i'«7mna, Blgr., p. 259. 



D. Caudal deeply notched, often subcrescentic; 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 ^; eye 2\ to 2f times in length of [p. 261. 



head; caudal peduncle longer than deep . 89. 7^. macropldhalma , Blgr., 

 D. XV 12 ; A. Ill 9 ; Sc. 31-32 '^ ; eye 2^ 



times in length of head ; caudal peduncle 



as long as deep 90. T. hrev'is, Blgr., p. 262. 



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

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



36 rr7j2 ' ^^^ "4 ^'^ ^ times in length of 

 head ; caudal peduncle 1§ times as long 



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



D. XVI 11 ; A. Ill 9 ; Sc. 40 ~^^ ; eye 3 times 



in length of head ; caudal peduncle 1^ 



times as long as deep 92. T.trematocephula,\i\gv..'p.26-i:. 



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



40 ; eye 2i times in length of head ; 



caudal peduncle nearly twice as long as 



deep 93. T. hoops, Bh^r., \>. 265. 



D. XIII-XIV 1.3-14 ; A. Ill 9-10 ; Sc. 55- 



65 T^,- : eye 2.\ to 2% times in length 

 18-2.T '•'-•* '^ 



of head ; caudal peduncle a little longer 



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



1. TILAPIA HUNTEIU. 



Oreochromis himteri, Giinth. Proc. Zool. Soc. 1889, ].. 70 : Pellegr. Mem. Soc. 



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

 Tllapia hunferi, Bonleng. Pi-oc. Zool. Soc. 1899, p. 110. 



Depth of body eqnal to length of head, ?>l timo.s in total length. 



11 Bou II/III 



