52 Mr. G. A. Boulengev on 



111. -Descriptions of Four new Species of Barbus discovered 

 by Mr. A. Blayney Percival in East Africa. By Lr. A. 

 BOULENGER, F.R.S. 



[Plate v.] 



Barbus PercivaU. (PL V. fig. 1.) 

 Depth of body equal to length of head, 3^ to 31 times in 

 total length. Snout rounded, as long as the eye, which is 

 contained 3| to 4 times in length of head; mterorbital width 

 2^ to 2§ times in length of head; mouth small, subinferior; 

 lips moderately developed, lower interrupted on the chin; 

 barbels two on each side, anterior as long ^s eye or a little 

 longer, posterior 1^ to H diameters of eye. Dorsal 111.6-7, 

 nearer occiput than base of caudal, with scarcely emargmate 

 border; last simple ray bony, strongly serrated, about | 

 length of head. Anal III 5, longest ray | length of head. 

 PeSoral | length of head, not reaching ventral ; latter below 

 anterior rays of dorsal. Caudal peduncle If to 1| as long as 

 deep. Scales 28-30 «, 3 or 3^ between lateral line and 

 base of ventral, 12 round caudal peduncle. Silvery, bi-ownish 

 on the back; two or three black spots on each sice, the hrst 

 or first two above the lateral line, the last at the base of the 

 tail • a small black spot on each side of the base of the dorsal 

 at its origin ; a more or less distinct dark streak along lower 

 surface of caudal peduncle. 

 Total length 55 millim. 



Several specimens from the Nairobi River, Kilimanjaro, 

 6500 feet. 



Barbus lumiensis. (PI. V. fig. 2.) 

 Depth of body 3| times in total length, length of bead 4 

 times. Snout rounded, as long as the eye, which is contained 

 4 times in length of head ; interorbital width 2^ times in 

 length of head ; mouth small, terminal ; lips moderately 

 developed, lower interrupted on the chm ; barbels two on 

 each side/anterior slightly longer than eye, posterior nearly 

 twice as long as eye. Dorsal III 7, nearer occiput than 

 base of caudal, with slightly emargmate border; last simple 

 ray bony, strongly serrated, nearly as long as head. Anal 

 ill 5, longest ray | length of head. Pectoral f length of 

 head, not reaching ventral; latter entirely in a|lva.ice of 

 dorsal. Caudal peduncle If as long as deep. Scales 27 j,, 6 



