232 



CICHLiDJS. 



depth of the scaly part below the eye about f diameter of latter. Gill- 

 rakers short, some bifid, 7 or 8 on lower part of anterior arch. Dorsal 

 XV-XVI 8-10 (usually 9) nearly equal in length from the fifth or sixth, 

 about -§■ length of head ; longest soft rays \ to § length of head. Anal 

 III 8-9 (usually 9) ; third spine longest, as long as longest dorsals. 

 Pectoral acutely pointed, as long as or a little shorter than head, 

 reaching vertical of origin of anal. Ventral reaching, or nearly reaching, 

 origin of anal. Caudal truncate. Caudal peduncle 1^ to 1-| times as long 



Fig. 152. 



Tilapia pallida. 

 Type (Ann. Mus. Genova, 1911). 



as deep. Scales feebly denticulate, very small on pectoral region, 30-33 

 iPj2 ; lateral lines -g^jg . Yellowish or pale brownish, with 6 to 8 more 

 or less distinct dark cross-bars, which may be traversed by a dark lateral 

 band extending from the eye to the caudal fin ; hns yellowish or pale 

 brownish, soft dorsal and caudal sometimes with small round dark spots. 



Total length 130 millim. 



Lake Victoria and Ripon Falls. — Types in Genoa Museum. 



1-4. Types. 



5-10. Ad. & hgr. 

 11-14. Types. 

 15. Skel. 



Bussu, L. Victoria. 



L. Victoria. 

 Jinja, Ripon Falls. 



Dr. E. Bayon (C.) ; Genoa 

 Museum (P.). 



66. TILAPIA PAPPENHEIMI. 



Bonleng. in Sclmbotz, Wiss. Ergebn. Deutscl). Z.-Afr. Exped., Zool. iii. p. 254, 

 pi. vii. fig. 1 (1914). 



Depth of body 3 to 3£ times in total length, length of head 3 to 

 3^ times. Head 2J to 2-^ times as long as broad, upper profile forming 



