202 Records of the Indian Museum. [Vol. XXII, 



caudal fin and a black spot at the base of the first few dorsal 

 rays. The rays of the dorsal fin have black markings along their 

 length in the middle. The caudal fin is dusky and the rest 

 spotless. In some examples the rings in the anterior portion are 

 hardly distinguishable and the colour has become uniformly black. 



The males of this species are provided with a thick, triangular 

 pad below the antero-inferior margin of the eye. 



N emachilus sikmaiensis is distinguished from the rest by the 

 simplicity of its lips, by the nature of the caudal fin which is 

 deepy forked, by the fact that the lateral line does not extend 

 beyond the middle of the anal fin and that the dorsal fin poss- 

 esses only eight branched rays. 



Type-specimens. — F 9932/1. Zoological Survey of India (Ind. 

 Mus.). 



Only nine specimens of this species were obtained in the 

 Sikmai stream near Palel on the Burma Road. 



Measurements in inillimetres. 



cf 2 2 2 2 



Total length including caudal 

 Length of caudal . . 

 Length of head 

 Depth of body 



Nemachilus kangjupkhulensis, sp. nov. 



Plate X^ figs. 4, 4a. 



D. 2/6—7. A. 2/5. V. 6—7. P. 9. 



In this species the dorsal profile is slightly arched and the 

 ventral is horizontal throughout. The head is bluntly pointed and 

 slightly depressed. The under surface of the head and body is 

 flat. There are open pores scattered all over the head, and a row 

 of these just below the eye is continued along the lateral line. 

 It has a ventral mouth, which is situated only a short distance 

 behind the anterior end of the snout and is surrounded by thick 

 lips. The upper lip is slightly notched and the lower widely in- 

 terrupted in the middle. Behind the lower lip there is a cushion- 

 like muscular pad, resembling the central callous portion of the 

 disc of Garra. The lower lip is slightly fimbriated. 



The length of the head is contained 5i— 5I times, of the 

 caudal 6— 6i times and the depth of the body 6— 8J times in 

 the total length including the caudal fin. 



The eyes are dorso-lateral in position and their diameter is 

 contained 5^ times in the length of the head. The snout is 

 twice as long as the diameter of the eye. The caudal peduncle 

 is li times as long as high. Lateral line.— The lateral line is 

 incomplete and ends before the commencement of the dorsal fin. 

 In some examples it extends to just above the end of the pectoral 



