Page:Travels in West Africa, Congo Français, Corisco and Cameroons (IA travelsinwestafr00kingrich).pdf/772

 to this species, although it shows some discrepancies from the typical specimen (from Doumé); it has D. 20, A. 25, L. lat. 58; there are eight notched teeth in the upper as well as lower jaw. Five longitudinal series of scales along each side of the candal peduncle.

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? Petrocephalus Marchei, Sauvage, Bull. Soc. Philom, 1878, p. 100.

? Mormyrus (Petvocephalus) Marchei, Sauvage, N. Arch. Mus. iii. 1880, p. 50, pl, ii. fig. 5.

Snout short, obtuse, but rather longer than the eye, with the mouth at its lower side. Mouth narrow, a little wider than the eye, armed above and below with six notched teeth; its corner lies a little in advance of the vertical from the front margin of the orbit. The upper profile of the head is somewhat more convex than the lower and ascends slightly towards the origin of the dorsal. Eye one-fifth of the length of the head. The height of the body is contained $3 3⁄4$ times in the total length (without caudal), the length of the head $5 1⁄2$ times. Caudal peduncle extremely slender, longer than the head (measured from the last anal ray), its depth being only two-ninths of its length. The origin of the dorsal fin is behind that of the anal and midway between the root of the caudal and the end of the opercle. The anal extends also further backwards than the dorsal. Pectoral fin as long as the head, reaching beyond the middle of the ventral; ventral fin half as long as the pectoral or as the distance of its root from the vent. Abdomen behind the ventral fin compressed into a ridge. Scales of moderate size; there are nine in an oblique series running from the vent to the lateral line and three and two half longitudinal series cover the side of the caudal peduncle. Silvery, light brownish above.

One specimen from Talagouga.