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. 86 :. 1. Hgr., Ad. ct hgr. 11. Hgr. 12. Ad. Stanley Falls. J?( oqiiilliatville, Upper , Lower (* go, ,,Banana, ,, Rev. W. H. Bentley (C). ??M. P. Delhez (C). ??Brussels UniA-er^ P. Delhez (C). 25. MAPCUSENIUS WILVERTHLBouleng. Ann. Mus. Congo, Zool. i. 1898, p. 8, i)l. iv. fig. 1, Proc. Zool. , p. 79G, and Poiss. Bass. Congo, p. 80 (1901). Dept
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. 86 :. 1. Hgr., Ad. ct hgr. 11. Hgr. 12. Ad. Stanley Falls. J?( oqiiilliatville, Upper , Lower (* go, ,,Banana, ,, Rev. W. H. Bentley (C). ??M. P. Delhez (C). ??Brussels UniA-er^ P. Delhez (C). 25. MAPCUSENIUS WILVERTHLBouleng. Ann. Mus. Congo, Zool. i. 1898, p. 8, i)l. iv. fig. 1, Proc. Zool. , p. 79G, and Poiss. Bass. Congo, p. 80 (1901). Depth of body 2| to 3 times in total length, length of head 4f 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, J to |^ length of head; mouth terminal orsubinferior, its width J 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 Fig. Marcusenitis (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,f to J length of snout or interorbital width. Dorsal 38-40, If to 1 jtimes 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, \\ to IJ times length of ventral, extending a little beyond baseof latter. Caudal scaled in its basal two-thirds, with pointed lobes. MARCUSENIUS.—STOMATOKiriNUS. 87 Caudal peduncle 3 times as long as deep, J length of head. G1-G8scales in lateral line, {^,pr^ in transverse series on body, j^^ in transverseseries between dorsal and anal, 3 2 round caudal peduncle. Yellowish. Total length 260 millim. Congo.—Tvpcs in Congo Mu
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