202 



CICHLHLE. 



like the dorsal. Pectoral a little longer than head, not extending quite 

 to vertical of origin of anal. Ventral produced, reaching origin of anal 

 or beyond. Caudal feebly emarginate, the outer rays somewhat pro- 

 duced. Caudal peduncle as long as deep or a little deeper than long. 

 Scales cycloid, 30-31 j^q ; lateral lines j^rii- Dark olive ; vertical fins 

 with some light spots, which may be confluent into two or three streaks 



rig. 128. 







A- 



u^ 



/ '®, 



'ft ' :' vi ■'}■ Wm£& 



Tilajila guineeiisis. 

 Type. §. 



on the dorsal ; the extremity of the fins blackish ; a black opercular 

 spot. 



Total length 190 milliin. 



Ashantee. 



1. Type. Ashantee. 



2. Ad. Sacred Lake, Bucumachi, near C. BeJdington, Esq. (P.). 



Kuinasi R. 



37. TILAPIA THOLLONI. 



Chromis tholloni, Sanv. Bull. Soc. Zool. France, 1884, p. 196, pi. v. fig. 1. 

 Tilapia tholloni, Bouleng. Proc. Zool. Soc. 1899, p. 121, and Poiss. Bass. Congo, 

 p. 468 (1901) ; Pellegr. Mem. Soc Zool. France, xvi. 1901, p. 324. 



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

 Head nearly twice as long as broad ; snout with straight upper profile, a 

 little broader than long, as loug as postocular part of head ; eye 3f to 

 4 times in length of head, 1£ to 1^ times in interorbital width, equal to 



