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Show 1899.] SYRIAN FISHES O F T H E F A M I L Y CICHLID.E. 125 32. TILAPIA VORAX. Chromis vorax, Pfeffer, Jahrb. Hamb. wiss. Anst. x. 1893, p. 151, pi. ii. figs. 9-11, and Thiervv. O.-Afr., Fische, p. 12, fig. (1896). Teeth very small, in 3 or 4 series in both jaws. Depth of body nearly equal to length of head, 2\ to 2 | times in total length. Snout Avith convex upper profile, \\ to 1| diameter of eye, which is 5 times in length of head and nearly twice in interorbital width ; mouth large; maxillary extending to below anterior border of eye or a little beyond ; 3 series of scales on the cheek ; large scales on the opercle. Dorsal X V 12-13 ; middle soft rays much produced, as long as head. Pectoral pointed, nearly as long as head, extending a little beyond origin of anal. Ventral extending beyond origin of anal. Anal III 10; soft rays prolonged like the dorsals. Caudal peduncle as long as deep. Scales cycloid, 28-31 y2 ; lat. l.-jj. Dark-olive brown; a rather indistinct dark opercular spot; vertical fins blackish. Total length 149 millim. German East Africa and Mozambique. 33. TILAPIA SIMONIS. Chromis simonis, Giinth. Proc. Zool. Soc. 1864, p. 492; Lortet, Arch. Mus. Lyon, iii. 1883, p. 143, pi. ix. fig. 1; Tristram, Faun. Palest, p. 165, pi. xvii. fig. 2 (1884). Chromis paterfamilias, Lortet, C.B. Ac. Sc. lxxxi. 1875, p. 1197, and La Nature, 1876, p. 81, figs. Teeth very small, in 4 or 5 series in both jaws. Depth of body equal to length of head, 2 | to 2§ times in total length. Snout with straight upper profile, 1| to 1£ diameter of eye, which is 4\ to 5 times in length of head and 1^ in interorbital Avidth; mouth moderate, § width of head ; maxillary extending to between nostril and eye; 3 or 4 series of scales on the cheek ; large scales on the opercle. Gill-rakers short and thick, 10 to 12 on lower part of anterior arch. Dorsal X V 9-10 ; last spine longest, g to f length of head, f to § longest soft rays. Pectoral pointed, as long as the head, extending as far as origin of anal. Ventral not reaching vent. Anal III 8-9 ; third spine a little shorter than last dorsal. Caudal rounded. Caudal peduncle as long as deep. Scales cycloid, 30-32 g ; lat. 1. g g . Olive, with 6 or 7 rather indistinct darker bars; opercular spot feebly marked; a rather indistinct dark spot between the anterior soft rays of the dorsal. Total length 180 millim. Syria (Lakes of Galilee and Huleh). 34. TILAPIA LATA. Chromis latus, Giinth. Cat. iv. p. 271 (1862); Steind. Verh. zool.- bot. Ges. Wien, xiv. 1864, p. 227, pi. viii. figs. 1 & 2. Chromis niloticus, part., Steind. Sitzb. Ak. Wien, lx. 1870, p. 96. |
