The freshwater Fishes of South Africa. 



407 



developed, lower continuous across chin. Two barbels on each side, 

 anterior f- to f diameter of eye, posterior i to as long as eye. 



Dorsal iii 8 ; equally distant from middle or posterior border of eye 

 and from root of caudal, upper border concave; last simple ray 

 strong, bony, strongly serrated down to basal third, feebly curved, as 

 long as or a little shorter than head. Anal iii 5 ; not reaching caudal. 

 Pectoral / to length of head, not or scarcely reaching to ventral ; 



FIG. 64. Barbun hamiltoni. 



3 

 2- 



base of latter slightly in advance of anterior rays of dorsal. Caudal 

 peduncle If to If as long as deep. Scales radiately striated, 



29-33 1|, 2i between lateral line and ventral, 16 round caudal 



peduncle. 



Colour (of preserved specimens), silvery, brownish above ; a faint 

 dark lateral streak ; scales with dark borders. 



Three specimens, 67 mm., 68 mm., 72 mm. in length respectively, 

 from Sabi Eiver, Transvaal (J. S. Hamilton). 



36. BARBUS LONGICAUDA, Blgr. 



Barbus gibbosus (non C. and V.), Peters, Mon. Berl. Ac., 1852, 

 p. 683; Giiath., Cat. Fish., vii., p. 101 (1868); Peters, Eeise Mos- 

 samb., iv., p. 52, pi. xi., fig. 2 (1868). 



Barbus longicauda, Bouleng., Proc. Zool. Soc., 1905, i., p. 63, and 

 Cat. Fresh. Fish. Afr., ii., p. 121, fig. 98 (1911). 



Depth of body 4 to 4^ times in total length excluding caudal, length 

 of head 3^ to 3| times. Snout rounded, as long as the eye, which is 

 3 |r to 4 times in length of head, interorbital width 3 times ; mouth 



