194 CICHLID.?^. 



31. TILAPIA MEEKI. 

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

 vi. 4, iyi4, p. 63, pi. ii. fig. 2. 



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

 3 times. Eye o^ to 4 times in length of head, 1 J to If times in inter- 

 crbital width ; mouth about | 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 j 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, 



'Jl 91 



30 jj ; lateral lines j^^j^- 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 millim. 



Lfigoon in Ivory Coast. — Types in Paris Museum. 



32. TILAPIA OABR^. 



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

 p. 4G9 (1901) ; Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 323. 



Depth of body If to 2^ times in total length, length of head 2J to 3^ 

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

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

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

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

 little less than prseorbital 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-riikers 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 rays more or less produced in adult, usually as long 

 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, 



