1894.] PISHES FROM E. AmiCA. 89 



riSHES. 



1. Peotopteeus ankectens, Owen. Tidal creeks at Mko- 

 numbi. 



2. Oreocheomis NIGER, sp. n. (Plate IX.) 



D. ^. A. I . L. lat. 29. L. transv. |. 



Teeth very small, indistinctly bicuspid, the inner cusp being 

 much larger than the outer : about 45 teeth on each side of the 

 outer series of the upper jaw. Scales below the eye in two series. 

 In a specimen eleven inches long the diameter of the eye is less 

 than the width of the prseorbital, one half of the width of the 

 interorbital space, and equal to the depth of the scaly portion of 

 the cheek. The height of the body is contained twice and a third 

 in the total length (without caudal), the length of the head one 

 third. Pectoral fin extending to the anal ; series of minute scales 

 cover the rays of the caudal fin. Scales smooth. Grreenish black; 

 vertical and ventral fins and a spot on the operculum deep black. 



Two specimens, of which the larger is 11 inches long, were 

 obtained from pools on the Kibwezi Eiver below its reappearance. 



One of these two specimens has distinctly three series of scales 

 on the cheek, but on one side of the head only. 



Closely allied to Oreochromis hunteri, Proc. Zool. Soc. 1889, p. 70. 



3. Cheomis SPILT7RUS, sp. n. (Plate X. fig. A.) 



15-16 A 3 



D. -^. A. -. L. lat. 30. L. transv. 



10- ■°- 8* -^- ^«"'- "'^^ •^- '^^'*"="'- 8+1 small ones- 



Teeth distinctly bicuspid, with the inner cusp broadest, brown 

 at the tip, small, about thirty-six on each side of the outer series 

 of the upper jaw. Scales smooth, those below the eye in two 

 series. The diameter of the eye of a specimen 4| in. long is less 

 than the width of the interorbital space, and more than the width 

 of the prteorbital or than the depth of the scaly portion of the 

 cheek. Interorbital space flat. The height of the body is some- 

 what more than the length of the head, and contained twice and 

 two-thirds or twice and a half in the total length (without caudal). 

 The pectoral fin extends to or a little beyond the origin of the anal. 

 Caudal nearly scaleless. Greenish, silvery on the sides ; a blackish 

 spot on the end of the operculum, and another on the side of the 

 caudal peduncle, just below the upper profile and close to the root of 

 the fin. Dorsal and caudal fins with blackish spots arranged in rows. 



Several specimens were obtained fi-om the Mwangaden Eiver 

 in N. Giriama ; the largest is 4| inches long. 



4. Clarias lazeea. C. V. Ngatana. 

 A Nilotic species. 



5. EuTROPiirs DEPRESsiROSTRis, Ptrs. Ngatana. 



6. Clarotes laticeps, Riipp. Ngatana. 

 Known from the Nile and West Coast. 



