. Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). Fishes; Freshwater animals. SYXODOIS'TIS. 473 Synodontis melanogaster, Ehrenb. in Peters, Keise n. Mossanib. iv. p. 31 (18G8). Synodontis membranacnis, Vaill. N. Arch. Mus. (3) viii. 1896, pp. 161 & 167. Depth of body 2f to 3 times in total length, length of head 2| to 3J times. Head 1^ to If times as long as broad, rugose, granulate above from between the eyes, the granulate area sometimes extending a little on the snout; snout obtusely pointed, as long as or a little longer than postocular part of he
. Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). Fishes; Freshwater animals. SYXODOIS'TIS. 473 Synodontis melanogaster, Ehrenb. in Peters, Keise n. Mossanib. iv. p. 31 (18G8). Synodontis membranacnis, Vaill. N. Arch. Mus. (3) viii. 1896, pp. 161 & 167. Depth of body 2f to 3 times in total length, length of head 2| to 3J times. Head 1^ to If times as long as broad, rugose, granulate above from between the eyes, the granulate area sometimes extending a little on the snout; snout obtusely pointed, as long as or a little longer than postocular part of head ; eye supero-lateral, oj (young) to 5J times in length of head, not less than interorbital width in young, 1J to If times Fig. Synodontis batensoda. Mouth of L. No (F. N.). a. in interorbital width in adult; operculum terminating in a few short spines. Lips moderately developed ; praemaxillary teeth forming a short and broad band; movable mandibular teeth 4 to ^ diameter of eye, 30 to 57 in number. Maxillary barbel with a broad marginal membrane, |- to about once length of head, usually reaching base of pectoral spine or a little beyond ; mandibular barbels inserted on a straight transverse line, the outer with long, slender, simple branches, 1^ to 2 times as long as inner, some of the branches of which are bifid or trifid. Gill-openings extending downwards beyond base of pectoral fin, but separated by a broad isthmus, which at least equals interorbital width. Occipito-nuch;il. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). Dept. of Zoology; Boulenger, Albert, 1858-1937. Codicote, Herts. [Eng : Wheldon and Wesley
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