270 



ADDENDA, VOL. II. 



serrated, as long as or a little longer than head. Anal III 5, not 

 reaching caudal. Pectoral as long as head, not quite reaching ventral ; 

 base of latter below origin of dorsal. Caudal peduncle as long as deep 

 or a little longer than deep. Scales radiately striated, 25-26 p, 2-2-| 

 between lateral line and ventral, 12 round caudal peduncle. Pale sand- 

 colour, with a silvery lateral band, which is sometimes edged above 

 with a streak of black pigment; fins white and transparent, or pale 

 orange at the base. 



Total length 55 millim. 



Eusso Nyiro, British East Africa. 

 1-10. Types. Eusso Nyiro, below falls. A. B. Percival, Esq. (P.). 



Closely allied to B. neglectus, and strikingly resembling B. argyrotcenia 

 in general appearance, although pertaining to a different section of the 



genus. 



Fig. 166. 



Barbus aurantiacus. 

 Type. 



170a. BARBUS AURANTIACUS. 

 Bouleng. Ann. & Mag. N. H. (8) vi. 1910, p. 554. 



Depth of body equal to length of head, 3§ to 4 times in total length. 

 Snout rounded, shorter than eye, which is 2| to 2f times in length 

 of head and equals interorbital width ; mouth subinferior, its width 

 3^ times in length of head ; lips moderately developed, interrupted on 

 the chin ; two minute barbels on each side. Dorsal III 8, equally 

 distant from end of snout or anterior border of eye and from root of 

 caudal, border slightly concave ; last simple ray flexible, not enlarged, 

 not serrated, as long as head. Anal III 5, not reaching caudal. 



