790 ME. G. A. BOTTLENGEB ON THE FISHES [Nov. 15, 



Mormyrus simus, Griinth. Ann. & Mag. N. H. (6) xvii. 1896, 

 p. 282. 



Depth of body 24 to Sj times in total length, length of head 

 4 to 4^. Head as long as deep, with convex upper profile ; snout 

 very short, i length of head ; obliquely truncate, projecting beyond 

 the mouth ; mouth situated below the anterior border of the eye, 

 its width J^ to I length of head; teeth bicuspid, 14-18 in the 

 upper jaw, 20-24 in the lower ; nostrils close together, in front 

 of the eye ; eye rather large, a little longer than the snout, 

 § interorbital width. Dorsal 24-28, originating above 5th to 7th 

 ray of anal, its length 1| to 2 in its distance from head. Anal 

 30-33, equally distant from base of ventral and from base of 

 caudal. Pectoral pointed, i length of head, twice as long as 

 ventral, extending beyond base of latter. Caudal scaled at the 

 base, with pointed lobes. Caudal peduncle 3 times as long as deep, 

 I to 4 length of head. 38-42 scales in the lateral line, j|^ in a 

 transverse series on the body, jj^, in a transverse series between 



dorsal and anal, 12 round caudal peduncle. Brown above, silvery 

 beneath ; anterior part of dorsal blackish. 



Total length 120 millim. 



Ogowe, Liberia. 



6. Peteocephalus glieoides. 



Mormyrus gliroides, Vincig. Ann. Mus. Genova, (2) xvi. 1897, 

 p. 353. 



Depth of body 24 times in total length, length of head 3|. 

 Head nearly as long as deep ; snout prominent, rounded, hardly ^ 

 length of head ; mouth interior, situated below anterior third of 

 eye, its width i length of head ; teeth bicuspid, 14 in the upper 

 jaw, 24 in the lower ; eye moderate, slightly shorter than the 

 snout, I length of head, g interorbital width. Dorsal 27, origi- 

 nating above 3rd ray of anal, at equal distance from head and 

 base of caudal. Anal 29, equally distant from base of ventral and 

 from base of caudal. Pectoral pointed, | length of head. Caudal 

 peduncle 2| as long as deep. About 40 scales in the lateral 

 line, fl in a transverse line on the body, |-| in a transverse line 



between dorsal and anal, 12 round caudal peduncle. Greyish 

 above, yellowish beneath. 



Total length 125 millim. 



Between Ganana and Lugh, Somaliland. — I am indebted to the 

 kindness of Prof. Gestro for the loan of the type specimen, 

 preserved in the Genoa Museum. 



7. Pbteocephaltts catostoma. 



Mormyrus catostoma, Giinth. Cat. vi. p. 222 (1866). 



Depth of body 3 to 3g times in total length, length of head 3| 

 to 3|. Head as long as deep, with convex upper profile ; snout 

 very short, ^ length of head, obliquely truncate, projecting beyond 



