84 Records of the Indian Museum. [Vol. VI, 



spots on either side, one close to the dorsal line the other on the 

 lateral line. 



7. In the district between Chumbi and Gyantse S. sioliczkae 

 is the predominant fish. The only species which at all ap- 

 proaches it in numbers is the small loach which also bears the 

 name of Stoliczka {Nemachilus stoliczkae, Day). Our present 

 subject is, however, much more numerous than even this common 

 species. During the summer numbers were caught every day in 

 the river at Gyantse, while the irrigation channels, the small 

 shallow ponds amongst the fields, and the pools of the marshes at 

 Sechen were alive with shoals of the fry. 



In comparison with the above two very numerous forms 

 other species are somewhat uncommon. During an entire summer, 

 although I had about half a dozen men in my emplo3"ment who 

 all had some acquaintance with the art of fishing, I did not 

 obtain more than four or five specimens of any other species. 

 Arranged roughly in order of frequency the other species found 

 would run {vide IJoyd, 5) : Ptychobarbus conirostris, Steind., Orei- 

 nus haileyi, L,loyd, Schizothorax nmcropogon, Regan, and S. o'con- 

 nori, Lloyd, Gymnocypris [Schizopygopsis] steicartii^ Llo^^d, and 

 Parexosioma stoliczkae. Day. 



It is clear that this fish is also one of the most common if not 

 the most common of the inhabitants of the upper waters of the 

 Indus, Oxus and Sutlej. 



8. Breeding and migration. — The breeding season in the neigh- 

 bourhood of Gyantse appears to occur about June. In the 

 less favoured waters near the watershed it is probably somewhat 

 later. iYdults with large ovaries and testes are found in the 

 former district as early as March when the river is still partially 

 covered with ice and the smaller streams and channels are com- 

 pletely frozen over. 



Small post-larval fish [vide pi. iii, fig. 4) measuring 14-15 mm. 

 in length were caught among the water-weeds of a shallow pond 

 near Gyantse on the 9th July. I believe that these are the young 

 of 5. stoliczkae; they are elongated narrow little beings, the maxi- 

 mum height including the fins being to the length as i : 7. The 

 head is roughly cylindrical, the snout is rounded and projects 

 beyond the mouth. There is an upper and a lower lip at the 

 corners of the mouth ; and the mouth and lower jaw closely resem- 

 ble those of the reputed parent 



The following are the measurements of two specimens : — 



1 This animal was described by Lloyd as Schizopygopsis stewartii, but as the 

 mouth is terminal and the lower jaw does not bear a sharp horny cutting edge, it 

 app^ars more in place in the genus Gymnocypris. 



