343 CYPEIXID.E. 



near the base of the caudal, and a more or less distinct daik bar on the 

 base of the fin ; fins whitish, transparent. 



Total length 43 miilim. 



Upper Nile and White Nile. 

 1-5. Types. Near Kermeh, 3rd Cataract. L. Loafc. Esq. (C). 



6. Hgr. Kaka, White Nile. „ 



4. DISOOGNATHTJS MAKIBNSIS. 

 Bouleng. Proe. Zool. Soc. 1903, ii. p. 330, pi. xxxi. fig. 1. 



Body feebly compressed, its depth 5 to 6 times in total length. Head 

 as broad as deep, 1^ times as long as broad, •§- to \ total length ; snout 

 rounded, projecting beyond mouth ; interorbital region convex, its width 

 not quite | length of head; eye lateral, but better visible from above 

 than from below, in middle of length of head, its diameter 4 to 5| times 



Fig. 262. 



% 



Discognathus maHensis. 

 Type (P. Z. S. 1903). f 



in length of head and 2 to 2-§- times in interorbital width ; width of 

 mouth not quite ^ length of head ; upper lip well developed, not 

 fringed ; lower lip embracing a mental disk which is broader than long ; 

 2 barbels on each side, measuring f to f diameter of eye. Dorsal III 7, 

 equally distant from end of snout or nostrils and from caudal ; longest 

 ray a little longer than head. Anal II 5. Pectoral as long as or slightly 

 longer than head, not reaching ventral, which is situated below middle 

 of dorsal. Caudal deeply emarginate. Caudal peduncle 1-^ to If times 

 as long as deep. Scales 38-40 J, 3A-4 between lateral line and ventral, 

 16 round caudal peduncle. Olive above, white beneath. 



Total length 80 miilim. 



Maki River, running into L. Zvvai. 

 1-2. Types. Maki R. Prof. 0. Neumann (C). 



