. Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). British Museum (Natural History); Fishes; Freshwater animals. 2G4 92. TILAPIA TREMATOCEPHALA. Bouleng. Ann. & Mag. N. H. (7) vii. 1901, p. 4, Poiss. Bass. Congo, p. 475 (1901), and Tr. Zool. Soc. xvi. 1901, p. 157, pi. xix. fig. 6 ; Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 334. Depth of body equal to length of head, 3j times in total length. Head a little over twice as long as broad ; snout rounded, with slightly convex upper profile, as long as broad, as long as postocular part of hea
. Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). British Museum (Natural History); Fishes; Freshwater animals. 2G4 92. TILAPIA TREMATOCEPHALA. Bouleng. Ann. & Mag. N. H. (7) vii. 1901, p. 4, Poiss. Bass. Congo, p. 475 (1901), and Tr. Zool. Soc. xvi. 1901, p. 157, pi. xix. fig. 6 ; Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 334. Depth of body equal to length of head, 3j times in total length. Head a little over twice as long as broad ; snout rounded, with slightly convex upper profile, as long as broad, as long as postocular part of head ; eye 3 times in length of head, exceeding interorbital width, nearly twice as long as least prseorbital depth ; mouth small, \ width of head, extending to between nostril and eye; teeth very small, in 2 series, about 50 in outer series of upper jaw; 3 series of scales on the cheek; Fie;. 179. ^^^^^. Tilajjia trematocephalrt. Type (Tr. Z. S. 1901). orifices of sensory canals on head remarkably large. Gill-rakers rather short, 13 on lower part of anterior arch. Dorsal XVI 11; last spine longest, ^ length of head; longest soft rays produced into filaments, as long as head. Anal III 9 ; third spine nearly as long as and stronger than last dorsal. Pectoral f length of head, not reaching vertical of origin of anal. Ventral extending beyond origin of anal. Caudal deeply emarginate. Caudal peduncle 1^ times as long as deep. Scales very indistinctly denticulate, 40 j0; lateral lines j. Brownish; dorsal and caudal greyish ; ventrals and anal black, latter edged with white. Total length 90 millim. Lake Tanganyika. 1. Type. North end of L. Tano-anvika. Prof. J. E. S. Moore (C).. 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, George Albert, 1858-1937. Lon
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