190 CICHLfD.^. 



dorsal. Pectoral much longer than head and extending a good deal 

 beyond origin of anal. Ventral reaching vent. Caudal ? (mutilated in 

 the type). Caudal peduncle nearly 1-^^ times as long as deep. Scales 

 cycloid, about 27-28 j^ ; lateral lines ''^. Seven dark bars on the body ; 

 a black opercular spot ; a black spot at the base of the anterior soft rays 

 of the dorsal, above the fourth bar ; anal and ventrals dusky to blackish. 



Total length about 82-85 millini. 



Lake Barombi-ba-Kotta, a volcanic lake on the Cameroon Mountain, — 

 Type in Stockholm Museum. 



30. TILAPIA MELANOPLEURA. 



A. Diim. Arch. Miis. x. 1859, p. 252, pi. xxii. fig. 1 ; Boulcng. Proc. Zool. Soc. 



1889, p. 123 ; Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 329, and Bull. 



Soc. Philom. (9) X. 1908, p. 134 ; Bouleng. Tr. Zool. Soc. xviii. 1911, 



p. 417. 

 Tilapia ajinis, A. Uum. t. c. p. 255 ; Bouleng. t, c. p. 127 ; Pcllegr. Bull. Mus. 



Paris, 1900, p. 277. 

 Tilapia polyeentra, A. Dum. t. c. p. 254 ; Bouleng. t, c. p. 128. 

 Chromis poli/centra, Giinth. Cat. Fish. iv. p. 270. 

 Chromis latus, Giinth. t. c. p. 271 (18G2) ; SteinJ. Verh. zool.-bot. Ges. Wien, 



xiv. 18G4, p. 227, pi. viii. figs. 1 & 2. 

 Chromis melanopleura^ Giinth. t. c. p. 272. 

 Chromis aureus, Steind. t. c. p. 229, pi. viii. fig. 5. 

 Chromis niloticus, part., StcinJ. Sitzb. Ak. Wien, ix. 1870, p. 9G. 

 Chromis aerideomaculatus, Rochebr. Bull. Soc. Philom. (7) iv. 1880, p. 106, and 



Act. Soc. Linn. Bonl. (4) vi. 1883, p. 132, pi. iv. fig. 3. 

 Chromis /aid herbi, Rochebr. tt. cc. ]). 167, and p. 134, })1. v. fig. 5. 

 Chromis afjinis, Rochebr. Act. Soc. Linn. Bord. (4) vi. 1883, p. 131. 

 Chromis ogoxoensis, Giuith. Ann. & Mag. N. H. (6) xvii. 1896, p. 271, and Proc. 



Zool. Soc. 1899, p. 717, and 1902, ii. p. 331. 

 Chromis rendalli, Bouleng. Proc. Zool. Soc. 1896, p. 915, fig. 

 Tilapia remlalli, Bouleng. Tr. Zool. Soc. xv. 1898^ p. 4, and Proc. Zool. Soc. 



1899, p. 126. 

 Tilapia lata, Bouleng. Proc. Zdol. Soc. 1899, p. 125, and Poiss. Bass. Cono;o, 



p. 466 (1901) ; Steind. Denkschr. Ak. Wien, Ixxxix. 1913, p. 60. 

 Tilapia scxfasciata, Pellegr. Bull. Mus. Paris, 1900, p. 276. 

 Chvomis discolor, Gihith. Proc. Zool. Soc. 1902, ii. p. 332. 

 Tilapia latifroiis, Bouleng. Tr. Zool. Soc. xvli. 1906, p. 571, pi. xl. 



Depth of body If to 2^ times (rarely 2\ times) in total length, lengt-h 

 of head 3 to 3J times. Head If to 2 times as long as broad ; snout 

 with straight or convex, or slightly concave uj)per profile, as long as 



