194 CICHLIDJs 



31. TILAPIA MEEKI. 



Pellegr. Bull. Soc. Zool. France, xxxvi. 1911, p. 185, and Ann. Instit. Oceanogr. 

 vi. 4, 1914, p. 63, pi. ii. fig. 2. 



Depth of body If to 2 times in total length, length of head 2f to 

 3 times. Eye 3 J to 4 times in length of head, If to If times in inter- 

 orbital width ; mouth about f width of head, extending a little beyond 

 vertical of nostril ; teeth small, in several series, 60 in outer series of upper 

 jaw ; 3 series of scales on the cheek. 14 gill-rakers on lower part of 

 anterior arch. Dorsal XV 14 ; last spine longest, \ or nearly \ length 

 of head. Anal III 10-11 ; third spine a little shorter than last dorsal. 

 Pectoral nearly as long as head. Ventral reaching anal. Caudal 

 rounded. Caudal peduncle much deeper than long. Scales cycloid, 

 30 jj; lateral lines fjzi2- Brownish, with a black opercular spot and 

 five or six large black spots along the side of the body ; vertical fins and 

 ventrals blackish. 



Total length 180 mill.im. 



Lagoon in Ivory Coast. — Types in Paris Museum. 



32. TILAPIA CABUM. 



Bouleng. Ann. Mus. Congo, Zool. i. p. 51, pi. xxvii. (1899), and Poiss. Bass. Congo, 

 p. 469 (1901) ; Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 323. 



Depth of body If to 2| times in total length, length of head 2f to 3| 

 times. Head 1^ to If times as long as broad, with convex or slightly 

 concave upper profile ; snout If to If times as broad as long, as long as 

 or a little shorter than postocular part of head; eye 3 (young) to 4s- 

 times in length of head, 1 (young) to 2 times in interorbital width, a 

 little less than praeorbital depth in adult ; mouth moderate, f to f width 

 of head, extending to between nostril and eye ; teeth in 3 (young) to 

 8 series, outer largest, 30 (young) to 80 in upper jaw, and separated 

 from the others by a rather wide interspace ; 3 or 4 series of scales on 

 the cheek, width of scaly part greater than diameter of eye in adult. 

 Gill-rakers short, 12 to 15 on lower part of anterior arch. Dorsal XV- 

 XVI (rarely XIV or XVII) 12-13 ; last spine longest, \ to f length of 

 head ; middle soft rajs more or less produced in adult, usually as lon°- 

 as or a little longer than head. Anal III 10-11; third spine shorter 

 than longest dorsal. Pectoral f to once length of head, not reaching 

 vertical of origin of anal. Ventral usually reaching vent or anal. 

 Caudal rounded. Caudal peduncle deeper than long. Scales cycloid, 



