16 



SECOND YAEKAND MISSION. 



of head equals its height or its length excluding the snout. Lips moderately thick and 

 rugose ; lower labial fold interrupted in the middle. Barbels 6 ; the maxillary ones scarcely 

 reach to below the front edge of the eye, the longest rostral ones to below the front nostril. 

 Fins: dorsal commences midway between the front edge of the eye and the base of 

 the caudal fin: it is as high as the body below it and half higher than its base is 

 long? its upper anterior corner rounded. Pectoral as long as the head behind the 

 angle of the mouth, and reaching nearly to the ventral, which latter fin arises below the 

 commencement of the dorsal fin : it is shorter than the pectoral, but extends to the base of 

 the anal. Anal twice as high as long, and reaches above half-way to the base of the caudal 

 which is emarginate. Free portion of the tail twice as long as high at its base. Scales 

 absent. Colours : of a light fawn, with sixteen or eighteen interrupted darker and sinuous 

 bands passing from the back down the sides ; a silvery lateral band. Dorsal and caudal 

 finely spotted in lines : a darkish band on pectoral, ventral and anal. 



Hab. Gnari Khorsum, Tibet. The specimen described is the largest of two obtained by 

 Messrs, von Schlagintweit, and deposited in the Indian Museum. The size of the British 

 Museum specimen, and the broken state of its caudal fin, must be accepted as the reason 

 why my proportion of the free portion of the tail does not agree with Dr. Giinther's (nearly 

 J) ; whilst I find the caudal fin " emarginate," and not " rounded." 



22. NEMACHEILUS GEACILIS. Plate IV, fig. 5. 



Day, Proc. Zool. Soc., 1876, p. 798. 

 B. iii, D. |, P. 13, V. 8, A. f , C. 17. 



Length of head 5|, of caudal 6|, height of body 6| ; in the total length. Eyes : 

 diameter 11 in length of head, 4 diameters from end of snout, and 2^ apart. Snout 

 overhanging the mouth. The greatest width of the head equals its height or its length 

 excluding the snout. Lips thickened ; lower labial fold interrupted in the middle and rather 

 lobed on either side. Barbels six ; the maxillary ones nearly twice as long as the eye ; the 

 external rostral ones reach the hind nostril ; the other pair are shorter. Fins : dorsal com- 

 mences midway between the eye and vertical border of the preopercle ; its upper edge is 

 nearly straight ; it is not quite so high as the body below it, and one-fourth less than the 

 extent of its base. Pectoral as long as the head behind the angle of the mouth ; it reaches 

 rather above half-way to the base of the ventral, which latter fin arises somewhat in advance 

 of the commencement of the dorsal ; it is of about the same length as the pectoral, and ex- 

 tends half-way to the anal. Anal twice as high as wide at its base : it reaches, when laid flat, 

 a little more than half-way to the base of the caudal, which is slightly emarginate. Free 

 portion of the tail half as high at its base as it is long. Scales absent. Colours brownish 

 along the back, becoming yellowish beneath : dorsal and caudal with dull spots. 



Hab. Basgo, on the head waters of the Indus. 



