1893.] ■ FISHES FROM BRITISK CENTKAL AFRICA. 625 



Hemichromis modestus, sp. u. (Plate LVII. fig. A.) 



D. Yij. A. ^. L. lat. 29. L. transv. ^2- 



All the teeth are conical, onl}- one or two showing traces of an 

 additional cusp, thirty-four on each side of the outer series of the 

 upper jaw. Scales below the eye in four rather irregular series ; 

 scales on the neck and below the anterior dorsal spines much 

 smaller than those of the body. In a specimen 6 inches long the 

 diameter of the eye equals the width of the praeorbital and the depth 

 of the scaly portion of the cheek, but is less than the width of the 

 interorbital space, which is convex. The angle formed by the 

 prseopercular limbs is a I'ight one. Snout considerably produced, 

 witli the lower jaw strongly projecting beyond the upper, rather 

 longer than the postorbital portion of the head. The height of 

 the botly is less than one third, the length of the head considerably 

 more than one third of the total length (mthout caudal). Dorsal 

 spines rather short, of moderate strength, the longest being one 

 third of the length of the head. Pectoral fin reaching to the vent. 

 Body uniform brownish black, fins black. 



Some of the gill-rakers are T- or hammer-shaped. 



A single specimen, 6 inches long, was obtained by the Rev. J. A. 

 Williams. 



Hemichromis litingsto?sii, sp. n. (Plate LVI. fig. B.) 



D. j(,. A. ^. L. lat. 32, L. transv. j^- 



Teeth conical, but a few show traces of an additional cusp, 

 twenty-six on each side of the outer series of the upper jaw. 

 Scales below tlie eye very thin, in five rather irregular series ; 

 those on the nei-k and anterior part of the back much smaller than 

 those of the body. In a specimen 5 inches long the diameter of 

 the eye is less than the depth of the scaly portion of the cheek, but 

 equals the width of the prseorbital and of the interorbital space, 

 which is convex. The angle formed by the praopercular limbs is 

 a right one. Snout moderately produced, equal to the postorbital 

 portion of the head, the lower jaw projecting but little beyond the 

 upper. The height of the body is a little less than the length of 

 the head, which is nearly one third of the total (without caudal). 

 Dorsal spines of moderate strength and length, the longest being 

 two fifths of the length of the head. Pectoral fin reaching to the 

 anal. Body largely and irregularly marbled with black and silvery; 

 head ornamented with several black bands, one from the eye to 

 the angle of the mouth, merging into the black coloration of the 

 lower parts, another band from the eye over the operculum, a 

 third across the forehead, and a fourth across the foremost part 

 of the neck ; dorsal and caudal marbled with lighter and darker, 

 ventral and anal black. 



None of the gill-rakers are hammer-shaped. 



A single specimen, 5 inches long, is in the Johnston col- 

 lection. 



