The Freshwater Fishes of South- Africa. 



373 



Sc. 29-31 =ff, 2i-3, 12; dorsal with 8-9 

 "a 



blanched rays; posterior barbel -^ 



diameter of eye ; snout projecting very 

 slightly beyond mouth ; ventral below 

 middle of dorsal 55. B. inennis, Peters. 



(//) Lateral line incomplete. 

 Sc. 27-29 A, 2J-3, 12 ; dorsal with 7-8 



branched rays ; anal with 2 spines ; lateral 



line on 8-15 scales only 56. B. hemipleurogramma, Blgr. 



2. A single barbel on each side. 

 (a) Dorsal with 7 (rarely 6) branched rays. 



Sc. 37-42 - ~, 5-6, 18-20 ; mouth inferior . . 57. B. asper, Blgr. 

 05-95 



Sc. 32-38 , 3A-5, 14-16 ; mouth sub-inferior 58. B. anoplu*, M. Web. 



Sc. 36 -* 5, 16 ; mouth terminal ; anal with 



o 



2 spines 59. B. karkeiisis, n. sp. 



Sc. 28-31 rf, 3, 12 ; mouth inferior 60. B. afer, Peters. 



05 



(b) Dorsal with 8 branched rays ; barbel minute, if present. 



Sc. 27-28 |f, 2, 12 ; mouth inferior 61. B. rogersi, Blgr. 



05 



1. BARBUS POLYLEPIS, Blgr. 



Bouleng., Proc. Zool. Soc., 1907, p. 308, fig., and Cat. Fresh. Fish. 



Afr., ii., p. 21, fig. 3 (1911). 





FIG. 34. Barbus polylepis. 



" Depth of body 4i times in total length, length of head 3 : } times. 

 Snout rounded-subacuminate, 3 times in length of head, feebly 

 projecting beyond mouth; eye 4^ times in length of head, interorbital 



