. Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). British Museum (Natural History); Fishes; Freshwater animals. TILAPIA. 249 80. TILAPIA JOHNSTONII. Chromis johnstoni, Giinth. Proc. Zool. Soc. 1893, p. 622, pi. liv. fig. A. Chromis subocularis, part., Giinth. t. c. p. 621, fig. B. Tilapia johnstoni, part., Boulcng. Tr. Zool. Soc. xv. 1898, p. 4, and Proc. Zool. Soc. 1899, p. 130. Astatotilapia johnstoni, part., Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 303. Depth of body nearly equal to length of head, 2f to 3J times in total length. Head twice as lo
. Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). British Museum (Natural History); Fishes; Freshwater animals. TILAPIA. 249 80. TILAPIA JOHNSTONII. Chromis johnstoni, Giinth. Proc. Zool. Soc. 1893, p. 622, pi. liv. fig. A. Chromis subocularis, part., Giinth. t. c. p. 621, fig. B. Tilapia johnstoni, part., Boulcng. Tr. Zool. Soc. xv. 1898, p. 4, and Proc. Zool. Soc. 1899, p. 130. Astatotilapia johnstoni, part., Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 303. Depth of body nearly equal to length of head, 2f to 3J times in total length. Head twice as long as broad; snout rounded, with straight upper profile, as long as broad, as long as postooular part of head ; eye oi to 4 times in length of head, equal to or somewhat greater than interorbital width, exceeding praeorbital depth; mouth rather small, -f width of head, extending to between nostril and eye ; teeth in 4 or 5 Fig. 167. jsiife& w. Tilapia jolmstonii. Type, after Giinther (P. Z. S. 1S93). f S3^ ^ m m^ 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-XVI 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 If to \\ times as long as deep. Scales distinctly denticulate, 32-33 j^3; lateral lines ~Yi-iv ^ale °'lve5 Wltn 6 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 re
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