2U 



CICHLID^. 



Snout with straight upper profile ; eye 4f times in length of head, equal 

 to interorbital width ; mouth not extending to below anterior border of 

 eye ; 6 or 7 series of scales on the cheek. Dorsal XV 10 ; last spine 

 longest, about ^ length of head ; longest soft rays not quite 5 length of 

 head. Anal III 8. Pectoral f length of head. Caudal rounded. 

 Scales 30 jg ; lateral lines j^. Yellowish brown ; a black opercular spot ; 

 dorsal and caudal with round blackish spots. 



Total length 115 millim. 



Angola. — Type in Vienna Museum. 



'F\s. 138. 



Tilapia buettikoferi. 

 Type of T. ansorgii. |. 









49. TILAPIA BUETTIKOFERI. 



Cliromis hilttlhoferi , Hulncclit, Notes Leyd. Mus. iii. 1881, p. 66 ; Steind. op. cit. 



xvi. 1894, p. 39. 

 Tilapia huettikoferi, Boulcng. Proc. Zool. Soc, 1899, p. 128 ; Pellegr. Mum. Soc. 



Zool. France, xvi, 1904, p. 322. 

 Tilapia ansorgii, Boiileiig. Ann. & Mag. N. H. (8J vii. 1911, p. 376. 



Depth of body 1^ to 2^ in total length, length of head 3 to 3f times. 

 Head 1| times as long as broad, upper profile slightly concave ; snout 

 as long as broad, If times as long as eye in adult, as long as eye in 

 young ; eye 3 (young) to 4 times in length of head, 1 to If times in 



