ji Records of the Indian Museum. [Vol. XXIV 



Nemachilus gracilis Da)'. 



1876. Nemachilus gracilis, Day, Proc. Zool. Soc. London, p. 798. 

 1878. Nemachilus gracilis. Day, Sci. Res. and Yarkand Mission. 



Ichthyol., p. 16, pi. iv. fig. 5. 

 1878. Nemachilus gracilis. Day, Fish. India II, p. 621. 

 1889. Nemachilus gracilis, Day, /"awH. #r<7. /W. Fish. 1, p. 237. 

 1898. Nemacliilus stoliczkae, Alcock, Rep. Nat. Hist. Res. Pamir 



Bound. Comm., p. 38. 



This species is readily distinguished by the nature of its lower 

 lip which is widely interrupted in the middle and is thrown into a 

 longitudinal fold on either side. I have examined Day's type- 

 specimen "from Basgo, on the head waters of Indus." 



I also refer to this species a specimen from Iyukong River 

 and several others from the affluents of the Yasin River near 

 Darkot. The latter were collected by Col. Alcock. The waters 

 of both these streams flow directly cr indirectly into the Indus 

 River. These specimens were previously recorded as N. stoliczkae. 



Several young, half-grown and adult specimens have recently 

 been collected in the Kashmir Valley. The specimens were ob- 

 tained from a lake about four miles from Sonmarg. The species 

 exhibits marked sexual dimorphism. The eggs are minute. 



The adult individuals possess 6 to 7 broad black bands across 

 the back. In young specimens there is a series of black dots 

 along the lateral line and the dorsal surface is mottled with black 

 and brown. 



Nemachilus vittatus (Heckel). 



1838. Cobitis vittata. Heckgf, Fische Kaschm., p. 80, pi. xii, figs. 3 



and 4. 

 1844. Cobitis vittata, Heckel, in Hiigel's Kaschmir IV, p. 382, fig. 



Giinther ' combined Heckel' s two species of this genus from 

 Kashmir and adopted for them the specific name marmoratus. 

 Day 2 followed Giinther and recognised only one form from the 

 Kashmir lakes. Zugmayer 8 perhaps doubted Giinther's identifi- 

 cation and in recording Nemachilus marmoratus from " Wular 

 I v ake" gave Giinther as the author of the species. On examin- 

 ing the old collection of the Indian Museum, I find that out of 17 

 specimens from the Kashmir lakes, 16 belong to N . vittatus and 

 one to another species. N. vittatus can be readily recognised by 

 the nature of its lateral line which ends shortly after its com- 

 mencement. 



I have not included references by Giinther, Day and Zugmayer 

 iinder the title of this species as it is impossible to be sure of the 

 identity of- the species they recorded. They do not make any 



1 Giinther, Cat. Brit. Mus. Fish. VII, p. 356 (1808). 



2 Day, Proc. Zool. Soc. London, p. 71)8 (1876); Fish. India II, p. (121 

 (1878). 



A Zugmayer, Zool. Jahrb. Syst. XXIX, p. 296 (1910). 



