208 



CICHLID.T.. 



28-29. Types. 



30-32. Ad. & bgr. 

 33-34. Yg. 



35. Ad. 



36. Ad. 



37. Skel. 

 38-40. Ad. & 



hgr. 

 41. Ad. 

 42-43. Ad. 



44. Ad. 



45-40. Ad. 

 47-51. Ad. ife 



hgr. 

 52-57. Ad. 



58-00. Ad. 



Niimaqualand, N. of 



Orange R. 

 Griqualand West. 

 Vredeford Road, Orange R. 



Colony. 

 N. Transvaal. 

 Groot Olifants R., Transvaal 



Klein Olifants R., „ 



Klip R., 



Mooi R., Potchei'stroom, 



Transvaal. 

 S.W. of Middelburg, 



Transvaal. 

 Crocodile R., Transvaal. 

 Ngoyi Hills, Zululand. 



Unifulosi Station, Znluland. 

 Indukuduku, „ 



Sir A. Smith (P.). 



S. African Museum (P.). 

 Capt. Barrett Hamilton (P.)« 



Dr. J. D. F. Gilchrist (P.). 

 Major G. E. Bruce (P.). 



Dr. J. D. F. Gilchrist (P.). 

 S. African Museum (P.). 



J. Pershouse, Esq. (P.). 



Hon. P. A. Methuen (P.). 

 Mr. C. Grant (C.) ; 

 C!. D. Rudd, Esq. (P.;. 



Dr. E. Warren (P.). 



42. TILAPIA OVALIS. 



Chromis oralis, Steind. Verh. zool.-bot. Ges. Wien, xvi. 1800, p. 761. 

 Tilujiia oralis, Bouleng. Proc Zool. Soc. 1899, p. 119, and Poiss. Bass. Congo, 

 p. 461 "(1 901) ; Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 319. 



Depth of body equal to length of head, 2f to 3 times in total length. 

 Head twice as long as broad, upper profile straight or curved ; snout as 

 long as broad, a little longer than eye, which is 3J (young) to 4 times in 

 length of head, and slightly exceeds interorbital Avidth or praeorbital 

 depth ; mouth about ^ width of head, extending to below anterior border 

 of eye ; teeth small, in 3 series, 40 to 50 in outer series of upper jaw ; 

 3 or 4 series of scales on the cheek, width of scaly part nearly equal to 

 diameter of eye. Gill-rakers short, 7 to 9 on lower part of anterior arch. 

 Dor>al XIII-XV 9-11; last spine longest, f to J length of head; 

 longest soft rays ^ to f . Anal HI 8-9 ; third spine as long as last 

 dorsal. Pectoral shorter than head, not extending to vertical of origin 

 of anal. Ventral reaching vent or anal. Caudal rounded. Caudal 

 peduncle as long as deep. Scales cycloid or very finely denticulate, 

 27-30 -j^ ; lateral lines ^^lo- Olive-brown, with or without faint darker 

 vertical bars ; a black opercular spot ; dorsal and anal edged with black, 



