254 ADDENDA, TOL. II. 



length of head ; mouth terminal, its width equal to diameter of eye ; 

 lips moderate ; two pairs of barhels, anterior as long as eye or slightly 

 longer, posterior twice as long. Dorsal II 7, nearly equally distant 

 from occiput and from root of caudal, border feebly concave; last 

 simple ray strong, bony, strongly serrated, bony part ^ to f length of 

 l)ead. Anal II 5, not reaching caudal. Pectoral | to f length 

 of head, not reaching ventral ; latter partly or entirely in advance of 

 dorsal. Caudal peduncle nearly 1^ times as long as deep. Scales 

 radiately striated, 27 ||, 2 between lateral line and ventral, 12 round 

 caudal peduncle. Silvery, brown above; a more or less distinct grey 

 streak above the lateral line, with more or less numerous dark dots, the 

 last at the base of the caudal. 



Total length 65 millim. 



Lake Mohasi, Ruanda, German East Africa. — Types in Berlin 

 ^luseum. 



Perhaps not specifically distinct from B. serrifer. 



\l2h. BARBUS LUAZOMEL^. 

 Lcinnb. Harnil. Svensk. Vet. Ak. xlvii. no. 6, 1911, p. 40. 



Depth of body 3J to of times in total length, length of head 4 times. 

 Snout rounded, 1^ (young) to 2 times as long as eye, which is 4 (young) 

 to 6 times in length of head ; interorbital width 2^ to nearly 3 times in 

 length of head ; mouth small, terminal ; lips feebly developed ; two 

 pairs of barbels, posterior longer, twice as long as eye. Dorsal III 7, 

 equally distant from eye and from root of caudal, border nearly straight; 

 last simple ray strong, bony, serrated, ossified part f to f length of 

 head. Anal III 5, not reaching caudal. Pectoral |- length of head, 

 not reaching ventral; base of latter partly in advance of dorsal. Caudal 

 peduncle 1^ to If times as long as deep. Scales radiately striated, 

 26-27 51, 3 between lateral line and ventral, 12 round caudal peduncle. 

 Olive above, silvery-white beneath; a darker stripe along the side of 

 the body. 



Total length 105 millim. 



Luazomela River, Guaso Nyiri, British East Africa. — Types in 

 Stockholm Museum. 



1-2. Two of the types. Luazomela R. Prof. E. Lonuberg (P.). 



Distinguished from B. serrifer by the smaller eye. 



