MAECUSENIUS. ' 79 



Brown above, white below ; dorsal and anal fins blackish, white at the 

 base ; a blackish streak along each lobe of the caudal fin. 



Total length 305 millim. 



White Nile; Togoland (West Africa). 



1. Type. Polkom, Baro R. (Sobat). IMr. P. C. Zaphiro (C.) ; 



W. N. McMillan, Esq. (P.). 



18. MAROUSENIUS TUMIFRONS. 

 Bouleng. Ann. Mus. Congo, Zool. ii. p. 24, pi. vii. fig. 3 (1902). 



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

 Head as long as deep ; snout rounded, f length of head, strongly 

 projecting beyond mouth, which is inferior, below vertical of eye, and 

 the width of which is ^ length of head ; teeth notched, bicuspid, 9 in 

 upper jaw, 10 in lower ; both nostrils on a line with lower border of eye, 

 which is close to the posterior ; eye rather small, shorter than snout, 



Fig. 62. 





Murcusenius tumlfrons, 

 Type(A. M. C). 4. 



J interorbital wddth. Dorsal 29, f its distance from head. Anal 28, 

 originating a little further back than dorsal. Pectoral pointed, as long 

 as head, twice as long as ventral, extending considerably beyond base of 

 latter. Caudal with long, pointed lobes. Caudal peduncle o\ times 

 as long as deep, a little shorter than head. 60 scales in lateral line, 

 ~ in transverse series on body, j^ in transverse series between dorsal and 

 anal, 16 round caudal peduncle. Uniform brown. 

 Total length 100 millim. 



Ubanghi. — Type in Congo Museum, Tervueren. 



