428 Mr. G. A. Boulcnger on 



J to ^ length of liead, not reacliinf^ ventral ; latter below or 

 sliglitly posterior to origin of dorsal. Caudal peduncle Ij to 

 1^ as long as deep. Scales 33-36 ^^, 4- between lateral 

 line and ventral, 12 or 14 round caudal peduncle. Greenish 

 above, golden on the sides and below ; fins yellowish green. 



Five specimens, measuring from 180 to 340 millim., from 

 the Errer Eiver, a mountain-stream flowing northwards from 

 the Jebel-Amhar range of mountains, in the Upper Adal 

 country, altitude about 4000 feet, Jan. 20, 1902. 



This new species, named in memory of the first explorer of 

 the Abyssinian fish-fauna, is distinguished from the preceding 

 in the shorter barbels and the continuous lower lip, which is 

 not notched on each side to form a median lobe. 



Barhus Ilarringtoni. 



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

 length. Snout rounded, a little more than ^ length of head ; 

 diameter of eye 8 times in length of liead, interorbital width 

 3 times ; mouth large, subinferior, its width 3 times in length 

 of head ; lips moderately developed, interrupted on the chin ; 

 barbels two on each side, anterior 1^, posterior 1^ diameters 

 of eye and as long as the distance between them. Dorsal IV 9, 

 last simple ray strong, bony, not serrated, feebly curved, 

 nearly \ length of head ; free edge of the fin emarginate ; its 

 distance from the occiput equal to its distance from the caudal. 

 Anal 111 5, longest ray | length of head, nearly reaching root 

 of caudal. Pectoral | length of head, not reaching ventral ; 

 latter below origin of dorsal. Caudal peduncle 1^ as long as 

 deep. Scales 34 |!, 3 between lateral line and ventral, 12 

 round caudal peduncle. Olive above, whitish beneath ; fins 

 greyish. 



Total length 500 millim. Stated by Mr. Degen to reach 

 double that length. 



A single specimen from the Hawash Eiver at Warrar, 

 altitude about 4000 feet, Feb. 6, 1902. 



This large Barbel, named in honour of Col. J. L. Harring- 

 ton, C.B., C.V.O., H.B.M. Consul General at the Court of the 

 Emperor Menelek, is nearly related to B. surkis, Riipp., from 

 ■which it differs in the less deep body, the longer snout, the 

 larger mouth, and the shorter barbels. The lower pharyn- 

 geal bones are much less massive, smaller in fact in this type 

 than in a smaller B. surkis; the anterior pharyngeal teeth of 

 the inner row have compressed mammiform crowns instead 

 of the feubspherica) form assumed by them in B. surkis. 



