212 CYPRINIDiE. 



formed by the upper lip. B. lologenys differs from the previously described B. radcliffii, 

 to which it is extremely closely related, in the more prominent snout and in the 

 presence of one series more of scales between the lateral line and the ventral fin. 

 8 soft rays in the dorsal fin is the usual number in B. lobogenys, 9 in B. radcliffii. 



4. BARBUS RADCLIFFIL 



(Plate XXXVII. fig. 1.) 



Boulenger, Ann. & Mag. N. H. (7) xii. 1903, p. 218. 



Barbus marequensis (non Smith), Pellegrin, Mem. Soc. Zool. France, xvii. 1905, p. 177. 



Body moderately compressed, its depth equal to or a little greater than the length 

 of the head, three to four times in the total length. Snout rounded, twice and three- 

 fifths to three and one-fifth times in the length of the head, feebly projecting beyond 

 the mouth ; diameter of eye three and one-third (young) to six and three-fourths 

 times in the length of the head, interorbital width twice and three-fifths to three times ; 

 width of mouth one-fourth to one-third the length of the head; lips well developed, 

 sometimes produced in the middle, the lower continuous across the chin ; barbels two 

 on each side, the anterior two-thirds to five-sixths the diameter of the eye, the posterior 

 as long as the eye or slightly shorter, the distance between their bases greater than the 

 diameter of the eye in the adult. Dorsal fin with III 9 (rarely 8) rays, the free edge 

 feebly emarginate ; last simple ray strong, bony, not serrated, straight, one-third to 

 three-fourths the length of the head; its distance from the occiput equals its distance 

 from the caudal fin. Anal fin with III 5 rays, the longest ray three-fifths to three- 

 fourths the length of the head. Pectoral fin acutely pointed, two-thirds to five-sixths 

 the length of the head, not reaching the ventral ; latter below anterior rays of dorsal. 

 Caudal fin deeply forked. Caudal peduncle once and a half to once and two-thirds as 

 long as deep. Scales finely striated longitudinally, 32-36 §Fft, 2 or 2J between 

 lateral line and root of ventral, 12 or 14 round caudal peduncle. . 



Brown, often with coppery and brassy shades, the scales darker at the base; 

 fins yellow, or of a dirty yellowish green, often much obscured with blackish ; iris 

 brass-yellow. 



The single specimen on which this species was founded was obtained in Lake 

 Victoria by the late Mr. Doggett, preserved as a skin, and presented to the British 

 Museum by Col. C. Delme Radcliffe, of the Anglo-German East African Boundary 

 Commission, in 1903. Four further specimens, also dry skins, have since been 

 received from Col. Delme Eadclifle. The same fish was obtained in Kavirondo Bay 

 by M. Alluaud in 1903-1904, and ten specimens, well preserved in spirit, were 

 brought home from Entebbe and Bunjako by Mr. E. Degen in 1905. 



