. Catalogue of the fresh-water fishes of Africa in the British museum (Natural history) ... Fishes; Freshwater animals. TILAPIA. L'49 80. TILAPIA JOHNSTOXLL Cliromis johistoni, GUutli. Proc. Zool. Soc. 1893, p. G22, pi. llv. %. A. Chromis subocidans, part., Giiiith. t. c. p. 621, fig. B. ' Tilapiajohnstom, part., Boulong. Tr. Zool. Soc. Tv. 1898, p. 4, and P,oc. Zool. Soc. 1899, p. 130. AMatotilapia johnstoni, part., Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 303. Depth of body nearly equal to length of head, 2f to 31 times in total length. Hfad twice as long as broad; snout rounded, with
. Catalogue of the fresh-water fishes of Africa in the British museum (Natural history) ... Fishes; Freshwater animals. TILAPIA. L'49 80. TILAPIA JOHNSTOXLL Cliromis johistoni, GUutli. Proc. Zool. Soc. 1893, p. G22, pi. llv. %. A. Chromis subocidans, part., Giiiith. t. c. p. 621, fig. B. ' Tilapiajohnstom, part., Boulong. Tr. Zool. Soc. Tv. 1898, p. 4, and P,oc. Zool. Soc. 1899, p. 130. AMatotilapia johnstoni, part., Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 303. Depth of body nearly equal to length of head, 2f to 31 times in total length. Hfad twice as long as broad; snout rounded, with straight xipper profile, as long as broad, as long as postocukr part of head ; eye U to 4 times in length of head, equal to or somewhat greater than interorbital width, exceeding prseorbital depth; mouth rather small, I width of head, extending to between nostril and eye ; teeth in 4 or 5. Tilapia jolinstonii. Type, after Giiiither (P. Z. S. 1893). series, outer moderately large and bicuspid, 40 to 50 in upper jaw, separated by a considerable interspace from the others, which are very minute and mostly conical; 3 or 4 series of scales on the cheek, width of scaly part less than diameter of eye. Gill-rakers short, 11 or 12 on lower part of anterior arch. Dorsal XV-XVl 10-11; last spine longest, |- to | length of head, f to f longest soft rays. Anal III 8-9 ; third spine a little shorter than longest dorsal. Pectoral as long as or a little shorter than head., reaching vertical of origin of anal. Ventral reaching vent or anal. Caudal slightly notched, with rounded corners. Caudal peduncle 1^ to 1| times as long as deep. Scales distinctly denticulate, '10-2& 32-33 j^; lateral lines j^j-^f;. Pale olive, with G or 7 more or less. 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).
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