neto Abyssinian Fishes. 429 



Bai'hus jarsin us. 



Depth of body equal to length of head, 8^ to 3f times in 

 total length. Snout rounded, 3 times in length of head ; 

 diameter of eye 3^ to 4| times in length of head, interorbital 

 width 3 times ; mouth inferior, its width 4 times in length of 

 head; lips moderately developed, the labial fold not extending 

 across the chin ; barbels two on each side, anterior f to 1 

 diameter of eye, posterior 1 to 1^, the distance between tliem 

 ^ to I diameter of eye. Dorsal IV 9 (rarely 8), last simple 

 ray strong, bony, not serrated, straight, f to | length of head ; 

 free edge of the fin feebly emarginate ; its distance from the 

 occiput less than its distance from the caudal. Anal III 5, 

 longest ray | to § length of head. Pectoral § to | length of 

 head, not reacliing ventral ; latter below anterior rays of 

 dorsal. Caudal peduncle 1^ to 1| as long as deep. Scales 

 31-34 ^-||i, 2^ or 3 between lateral line and ventral, 12 or 14 

 round caudal peduncle. Olive-brown above, silvery on the 

 sides and below ; a darker streak along each side of the back ; 

 axil of pectoral and of ventral and base of anal bright orange. 



Total length 115 millim. 



Numerous specimens of this small Barbel were obtained on 

 Jan. 13, 1902, in the Jerrer or rapid mountain-stream five 

 hours' ride from Harrar, flowing from Mouut Jarso to the 

 Webi Shebeli, altitude about 6000 feet. 



This species is most nearly related to B. intermedias of 

 Eiippell. Compared with young specimens (120 millim. 

 long) of the latter, it differs in the longer snout, tlie smaller 

 eye, the narrower interorbital region, and the shorter dorsal 

 spine. 



Barhus plagiostomus. 



Depth of body 3^ to 4 times in total length, length of head 

 4 to 4| times. Snout rounded, 3 or 3^ times in length of 

 head ; diameter of eye 4^ to 5 times in length of head, inter- 

 orbital width 2^ to "I'i times ; moutli inferior, forming a 

 broken arch, a feebly curved transverse line in front, its width 

 3 or 3^ times in length of head ; lips very feebly developed, 

 confined to the sides; a thin horny sheath, with a blunt keel, 

 covers the jaws ; barbels two on each side, subequal, as long 

 as or a little shorter than diameter of eye. Dorsal IV 9, last 

 simple ray very strong, bony, not serrated, nearly straight, as 

 long as head or only | its length ; free edge of the fin strongly 

 emarginate ; its distance from the occiput less than its distance 

 from the caudal. Anal 111 5, longest ray | to | length of 



