BABBITS. 57 



(young) to 6 times in length of head, interorbital width 2^ to 3 times ; 

 mouth inferior, its width 3 to 4 times in length of head : lips moderately 

 developed, lower continuous across chin (rarely interrupted) ; two barbels 

 on each side, anterior as long as eye or a little longer, posterior 1 to 

 1J diameters of eye. Dorsal III-IV 9-10, equally distant from occiput 

 or eye and from caudal, border concave; last simple ray very strong, 

 bony, not serrated, straight or very feebly curved, nearly as long as 



Buihus fihuJU. 

 Type (P. Z. S. 1902). f. 



head or a little longer in young. Anal III 5, reaching or nearly reaching 

 caudal. Pectoral as long as or a little shorter than head, usually nearly 

 reaching ventral ; base of latter below anterior rays of dorsal. Caudal 

 peduncle 1^ to If times as long as deep. Scales longitudinally striated, 

 24-29 - J 5r I , 2 between lateral line and ventral, 10-12 round caudal 

 peduncle. Olive-brown above, silvery below ; fins greyish. 



Total length 420 millim. 



Tana, Athi, and Pangani River Systems, East Africa. 



]— 4. Types. 

 5-14. Yg. 

 15-27. Ad. & bgr. 



28,29-31. Hgr. (Types 

 of B. tanensis.) 



32-34. Yg. (Types of 

 13. tancnsis.) 



Mathoiya R. (Tana), 4000 ft. 



Athi R. 



Kibwesi R. (Athi). 



G. el Narua (Baringo). 



S. L. Hinde, Esq. (P.). 



0. B. S. Storey, Esq. 



Prof. J. W. Gregory 

 (P.). 



