452 CICHLID^. 



1. XBNOTILAPIA SIMA. 



Bouleng. Tr. Zool. Soc. xv. 1899, p. 92, pi. six. fig. 5, Ann. Mus. Congo, Zool. i. 

 p. 147, pi. liv. fig. 5 (1900), and Poiss. Bass. Congo, p. 441 (1901) ; Pellegr. 

 Mem. Soc. Zool. France, xvi. 1904, p. 370 : Bonleng. Tr. Zool. Soc. xvii. 

 1906, p. 569. 



Depth of body 3f to 4^ times in total length, length of head 3 to 3;| 

 times. Snout very short and deep, with very steep convex upper profile ; 

 eye very large, oval, 2^ times in length of head and much exceeding 

 interorbital width ; mouth nearly straight, horizontal, extending to 

 below anterior border of eye ; 3 or 4 series of scales on the cheek. 

 Gill-rakeis very short, broad, truncate, 9 on lower part of anterior arch. 

 Dorsal XIV-XV 12-14 ; spines subequal from the fifth, ^ length of 

 head ; longest soft rays f length of head. Anal III 11-12 ; third spine 

 as long as longest dorsals. Pectoral as long as head, extending beyond 



riff. 307. 



Xenotilapia sima. 

 Type (Tr. Z. S. 1899). 



vertical of origin of anal. Ventral extending a little beyond origin of 

 anal. Caudal with deep crescentic notch. Caudal peduncle If to 2 

 times as long as deep. Scales strongly denticulate, 37-41 ~7 ; lateral 



35-36 



lines ?i-28. Brownish above, with or without a few large round darker 



O— io 



spots, whitish beneath; a blackish opercular spot; a shining wolden 

 spot on the suboperculum ; dorsal greyish, other fins yellowish. 



Total length 150 millim. 



Lake Tanganyika. — Type in Congo Museum, Tervueren. 



1. One of the types. Moliro. Capt. Lemaire (C). 



2. Ad. Albertville. Capt. Hecq (f!.). 



3. Sk..l. 



4-5. Ad. Niamkolo. Dr. AV. A. Ciuinington (C.). 



