iV. ladacensis Day. 



" Dorsal commences midway between 

 the front edge of the eve and the 

 base of the caudal fin. " 



" Free portion of the tail twice as high 

 as long" at its base. " 



78 Records of the Indian Museum. [Vol. XXIV, 



from Eastern Tibet. The Skardu specimens probably represent 

 another form in the same series. 



Nemachiius ladacensis Giinther. 



1868. Nemachiius ladacensis, Giinther, Cat. Brit. Mas. Fish. VII, 

 P- 356- 



The Indian Museum possesses only one specimen of this 

 species six and a half inches in length, from Kashmir ; it agrees 

 closely with Giinther's description but had been referred to N. 

 stoliczkae by Day. Day's ' N. ladacensis differs from Giinther's 

 account in several respects and probably represents a different 

 species. The descriptions differ in the following points : — 



N. ladacensis Giinther. 



" The origin of the dorsal fin is nearer 



to end of snout than to the root of 



the caudal. " 

 " The free portion of tail is very low, its 



depth being nearly one fourth of its 



length. " 

 The caudal fin is rounded 7 The caudal fin is emarginate. 



The proportions are also different in the two species. 



Unfortunately the specimen from which Day drew up his 

 description and which he " deposited in the Indian Museum " is 

 not now to be found. 



Day's specimen was said to have been collected by von 

 Schlagintweit at Gnari Khorsum, Tibet. N. ladacensis is known 

 from Ladak and Kashmir. 



Nemachiius stoliczkae (Steind.). 



1866. Cobitis stoliczkae, Steindachner, Verh. Zool-bot, Ges. Wien, p. 



793, pi. xi", fig. 2. 

 1868. Nemachiius stoliczkae, Giinther, Cat. Brit. Mus. Fish. VII, 



p. j6°- 



A very wide interpretation has been given to this species by 

 Day/ Herzenstein, 8 Giinther,* and several other ichthyologists. 

 I have examined a large number of specimens in our collection 

 from Lukong stream, Chagra, Yarkand, Sirikol and Aktash which 

 were referred to this species by Day but find that several distinct 

 forms are represented among them. There are only six specimens 

 which I can definitely refer to this species, one from Rupshu, the 

 type-locality, three from Lukong Stretun, one from Chagra and 

 one from Kashmir. The waters from these places pass to the 

 Indus River. 



1 Day, Proc. Zool. Soc. London, p. 797 (1876); Sci. Res. 2nd Yarkand 

 Mission, Ichthyol., p. 15, pi. iv, fig. 4. 



5 Day, Proc. Zool Soc. London, p. 795 (1876); Set. Res 2nd Yarkand 

 Mission, Ichthyol., p. 14, pi. v, fig. 2 (1878). 



B Herzenstein. IViss. Res. Przewalski Central As. Reis., Zool. Ill (2), p. 14 

 (1888). 



* Giinther, in Pratt's " Sjiows of Tibet", p. 249 (1892). 



