Hippopotamyrus pictus

From Boulenger 1909 Catalogue of the Fresh-Water Fishes of Africa in the British Museum (Natural History) Vol. 1 p. 113

Depth of body 3 ½ times in total length, length of head 5 times. Head as long as deep, with curved upper profile; snout ¼ length of head ; teeth bicuspid, 5 in upper jaw (4-5), 6 (5-7) in lower; a slight swelling of the chin; eye rather large, equal to length of snout, ¾ interorbital width. Dorsal and anal fins equally developed and exactly opposed to each other, former with 31 rays (29-36), latter with 33 (31-36), equally distant from caudal and from base of ventrals. Pectoral pointed, as long as head, reaching beyond base of ventral, which is about half as long. Caudal with pointed lobes, scaled on more than half its extent. Caudal peduncle 3 times as long as deep, as long as head. 78 scales in lateral line, 18/17 in transverse series on body, 16/16 between dorsal and anal, 12 round caudal peduncle. Brown or dark olive with yellowish bars, two of which enclose a sort of blackish rhomb between the anterior rays of the dorsal and those of the anal, which bear a black bar; a black band on the pectoral and ventral and on each lobe of the caudal. Total length (of type) 140 mm. Maximum observed size: 300 mm.