The Freshwater Fishes of South Afrini. 



409 



barbels on each side, anterior sometimes very feeble and 4- to i 

 diameter of eye, posterior | to y 7 ^ diameter of eye. 



Dorsal iv 8 ; equally distant from centre of eye and from root 

 of caudal, border slightly concave ; last simple ray strong, bony, 

 strongly serrated, the serrated part f to f length of head. Anal iii 5 ; 

 not reaching caudal. Pectoral ~ to f- length of head, not reaching 

 ventral ; the latter situated below or partly in front of anterior rays 

 of dorsal. Caudal peduncle If to twice as long as deep. Scales 



FIG. 66. Barlius rapax. 



radiately striated, 30-33 ^||, 2 to 3 between lateral line and ventral, 



14 round caudal peduncle. 



Colour (of preserved specimens), brown on back, yellowish on sides 

 and belly. 



Nine specimens, ranging from 56-240 mm. in length, from Dwaars 

 River, Transvaal. 



Three specimens, 127-226 mm. in length, from Pienaars River, 

 Transvaal (C. J. Swierstra). 



It is also reported from Eastern Bechuanaland (Limpopo System). 



: 38. BARBUS ARGENTEUS, Gunth. 



Giinth., Cat. Fish.,vii., p. 103 (1868); Bouleng., Boll. Mus. Torin., 

 xi., 1896, No. 260, p. 2, and Cat. Fresh. Fish. Afr., ii., p. 136, 

 fig. 113 (1911). 



" Depth of body 3 to 3^ times in total length, length of head 3^ to 4 

 times. Snout obtusely pointed, as long as eye, which is 3^ to 4 times 



