Cyprinid Fishes from Lhasa. 187 



subequal, nearly \ the length of i)eacl. Scales regularly 

 arraiiged, 124 in a longitudinal series ; thorax and abdomeu 

 scaly. Dorsal III 8, the third simple ray a stout coarsely 

 serrated spine, § the length of head ; origin of dorsal behind 

 the bases of the ventrals, nearer to base of caudal than to tip 

 of snout. Anal II o. Pectoral extendijig less than | the 

 distance from its base to base of ventral; ventral extending 

 nearly to the vent. Caudal forked. Caudal peduncle 1^ as 

 long as deep. Olivaceous ; fins pale. 



A single specimen, 160 mm. in total -length. 



Tills species is allied to S, pi-ogastus^ MacClell. 



■1. Schizothorax macrojjogon. 



Depth of body about 4 in the length, length of head 4.^. 

 Upper profile of head straight, oblique. Breadtli of head IK 

 in its length. Snout rounded, shorter than postorbital part 

 of head. Diameter of eye 5^ in the length of head, inter- 

 orbital width 25. Mouth inferior; lower jaw without horny 

 covering; fold of the lower lip broadly interrupted ; 2 barbels 

 on each side, subequal, i as long as the head or more. Scales 

 small and irregularly arranged on the anterior part of the 

 body, about 160 in a longitudinal series; lower part of 

 thorax and abdomen naked, except for some rudimentary 

 imbedded scales. Dorsal III 8, the third simple ray a stout 

 coarsely serrated spine, about | the length of head ; origin of 

 dorsal behind the bases of the ventrals, nearer to base of 

 caudal than to tip of snout. Anal III 5. Pectoral extending 

 I of the distance from its base to the base of ventral; ventrals 

 extending nearly to the vent. Caudal forked. Caudal 

 peduncle If as long as deep. Dark greyish, with some 

 darker spots on the upper part of the body; fins dusky. 



A single specimen, 230 mm. in total length. 



Distinguished from allied species by the long barbels. 



5. Nemachilus tihetamts. 



Depth of body 5 in the length, length of head 4. Snout a 

 little shorter than postorbital part of head, 1| as long as eye, 

 the diameter of which is 5 in the length of head and 1^ in 

 the interorbital width. Breadth of head 1| in its length and 

 equal to its depth. Cleft of mouth extending to below the 

 nostrils ; lips moderately thick, plicated, the lower inter- 

 rupted medianly ; barbels six ; outer rostral barbel reaching 

 the base of the maxillary barbel, which is a little shorter than 

 the eye. Scales entirely wanting. Dorsal II 8, its origia 

 equidistant from anterior margin of eye and base of caudal. 



