Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History) . l, 12 round caudal peduncle. Silvery, dark grey on theback. Total length 210 millim. Congo. SG 1. Hgr., Ad. & hgr. 11. Hgr. 12. Ad. Stanley Falls Coquilluitville. Upper , Lower ,Banana, Eev. W. H. Bentley (C). M. P. Delbez (C). )?Brussels P. Delbez (C). 25. MARCUSENIUS WILVERTHI. Bonleng. Ann. JJus. Congo, Zool. i. 1898, p. 8, pi. iv. fig. 1, Pioc. Zool. , p. 79G, and Poiss. Bass. Congo, p. 80 (1901). Depth of body 2-| to 3 ti
Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History) . l, 12 round caudal peduncle. Silvery, dark grey on theback. Total length 210 millim. Congo. SG 1. Hgr., Ad. & hgr. 11. Hgr. 12. Ad. Stanley Falls Coquilluitville. Upper , Lower ,Banana, Eev. W. H. Bentley (C). M. P. Delbez (C). )?Brussels P. Delbez (C). 25. MARCUSENIUS WILVERTHI. Bonleng. Ann. JJus. Congo, Zool. i. 1898, p. 8, pi. iv. fig. 1, Pioc. Zool. , p. 79G, and Poiss. Bass. Congo, p. 80 (1901). Depth of body 2-| to 3 times in total length, length of head 4-f to 5times ; back gibbose, with convex outline in front of dorsal and concaveoutline on nape. Head as long as deep, with convex upper and concavelower profile; snout short, ^ to ^ length of head ; mouth terminal orsubinferior, its width ^ to ^ length of head, below level of eye; chinwith a strong globular swelling; teeth extremely minute, almost hiddenin the thick gums, truncate or slightly notched, 3 in upper jaw, G in Pis. 69. ?•%>.-. Marcusenius (A. M. C). ±. lower; nostrils in posterior half of the snout, posterior a little lowerdown than anterior, which is on a level with centre of eye ; eye moderate,| to | length of snout or interorbital width. Dorsal 38-40, If to Iftimes length of anal, its length equalling its distance from head. Anal25-27, originating below 12th or 13th ray of dorsal, a little nearer baseof ventral than base of caudal. Pectoral pointed, a little shorter thanhead, 1| to If times length of ventral, extending a little beyond baseof latter. Caudal scaled in its basal two-thirds, with pointed lobes. MARCUSENIUS.—STOMATORHINUS. 87 Caudal peduncle 3 times as long as deep, | length of head. 61—68scales in lateral line, gqjj in transverse series on body, Ttru in transverseseries between dorsal and anal, 12 round caudal peduncle. Yellowish. Total length 260 millim. Congo.—Types in Congo Museum, Te
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