Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History) . xv. fig. 1 (1907). Depth of body i\ to 5 times in total length, length of head 6 to 7-ftimes. Snout very short, shorter than eye, the diameter of which is3 to 3^ times in length of head and equals or nearly equals interocularwidth ; mouth extending to below anterior third or centre of eye;nasal tentacle long and attenuate, f to f diameter of eye; praeorbital,suborbitals, praeoperculum, and mandible with the edge stronglyserrated; praeoperculum with a serrated ridge, parallel with the lowerborder. Gill-membr
Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History) . xv. fig. 1 (1907). Depth of body i\ to 5 times in total length, length of head 6 to 7-ftimes. Snout very short, shorter than eye, the diameter of which is3 to 3^ times in length of head and equals or nearly equals interocularwidth ; mouth extending to below anterior third or centre of eye;nasal tentacle long and attenuate, f to f diameter of eye; praeorbital,suborbitals, praeoperculum, and mandible with the edge stronglyserrated; praeoperculum with a serrated ridge, parallel with the lowerborder. Gill-membranes extending without a notch across the very short, tubercular, 9 to 11 on lower part of anterior arch. l2 143 — Anal 108-130 (including caudal). Pectoral as long as head or a littleshorter. Ventral serrature formed of 26-30 pairs of spines. Lateral line120-142. Brownish, uniform or with fine darker longitudinal streaks. Total length 200 millim. Bahr-el-Gebel and Bahr-el-Zeraf, Chad Basin, Liberia, Niger, Gaboon, Congo. Fig. 1^ Xenomi/ntics nigri,Bahr-el-Gebel (F. N.). §. 1. Ad. 6. Type. 7. Ad. 8. Hgr. 0-10. Ad. & hgr. 11. Hot. 12. Hgr. 13. Ad. 14. Skel. 15. Ad. 18. Ad. 19. Ad. Gondokoro, Lamy, Shari Ivondo-Tvondo, , „ Bangala (lotxntry, , Lower , L. Leopold II., Congo. Ibali, „ „ Monsembe, Upper , Ubanghi. Dr. F. Werner (P.). Capt. G. B. Gosling (P.). Mr. L. Fraser (G). R. B. N. Walker, Esq. (P.). Miss Kingsley (C). Dr. W. J. Ansorge (G). M. De Meuse (C). M. Luja (C). M. P. Delhez (C). Rev. J. H. Weeks (P.).Brussels Royanx (C). Fam. 4. OSTEOGLOSSII).^. Margin of the upper jaw formed by the praemaxillaries and themaxillaries, the latter the more developed; nasal bones large and incontact with each other; parietal bones separating the supraoccipitalfrom the frontals ; suboperculum m
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