BAEBUS. 223 



with III 5 rays, longest ray one-half to two-thirds the length of the head, reaching or 

 nearly reaching the root of the caudal fin. Pectoral fin three-fifths to three-fourths 

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

 dorsal. Caudal fin deeply forked. Caudal peduncle once and a half to once and 

 two-thirds as long as deep. Scales longitudinally striated, 31-35 ^~, 1\ or 3 between 

 lateral line and ventral, 12 round caudal peduncle. 



Head and upper part of body dark slate-colour, sides dark green, belly yellowish 

 green, in life ; caudal green, other fins steel-grey ; iris dark bronzy. 



Total length 450 millimetres. 



Lake Tsana. Four specimens were brought home by Mr. Degen. The largest was 

 obtained at Zegi, May 27th, 1902, the others at Bahardar, June 1st and 4th, 1902. 



This fine Barbus is closely allied to B. nedgia, differing in the less developed mental 

 lobe and the absence of an upper labial lobe, which is replaced by a similar appendage 

 formed by the skin of the snout above the lip. That these dermal appendages are not 

 sexual characters is proved by the fact that they are not more developed in the largest 

 specimen, a male, than in another, the third with regard to size, which I have 

 ascertained to be a female. 



11. BARBUS NEDGIA. 

 (Plate XLI. fig. 2.) 



Labeobarbus nedgia, Riippell, Mus. Senckenb. ii. p. 14, pi. ii. fig. 3 (1837). 



Barbus nedgia, Griinther, Cat. Fish. vii. p. 104 (1868) ; Boulenger, Ann. & Mag. N. H. (7) x. 

 1902, p. 426. 



Depth of body three and a half to four and one-fifth times in the total length, length 

 of head three and one-fourth to three and three-fourths times. Snout long and pointed, 

 two and one-third to three times in the length of the head ; diameter of the eye four 

 (young) to eight times in the length of the head, interorbital width three and 

 one-fourth to three and two-thirds times ; mouth inferior, its width four and a half 

 to five and a half times in the length of the head ; lips very strongly developed, both 

 upper and lower produced into a rounded or subtriangular lobe which is nearly as long 

 as or longer than the diameter of the eye ; anterior barbel one to one and a half, 

 posterior one to one and three-fourths diameters of eye, the space between them 

 at least two-thirds diameter of eye. Dorsal fin with IV 8-9 rays, last simple ray very 

 strong, bony, not serrated, straight or slightly curved, one third to nearly once the length 

 of the head ; free edge of the fin more or less emarginate ; its distance from the occiput 

 equal to or a little less than from the caudal fin. Anal fin with III 5 rays, the longest 

 three-fifths to two-thirds the length of the head, often reaching the root of the caudal. 



