igigJ N. Annandale : Bombay Streams Fauna. 127 



are merely prolongations of the processes that always occur 

 between the two nostrils on either side of the head. The coloura- 

 tion of the fish varies considerably in different parts of the same 

 streamlet. When the bottom is sandy the dark bars or spots on 

 the sides are much less strongly marked than where it is of a dark 

 colour. 



At Khandalla I found A^. evezardi with Discognathus nasutus 

 and a new species of Psilorhynchus in hill streamlets nowhere 

 more than a few feet in breadth. It frequented small pools, 

 taking the place occupied by A^. montanus in similar streamlets in 

 the Eastern Himalayas. 



Nemachilus savona (Ham. Buch.). 



This loach is common in many of the smaller rivers of Penin- 

 sular India and the Indo Gangetic plain. I obtained several 

 specimens from the Yenna River at Medha. 



In fresh specimens the head and forequarters are of a rather 

 bright olivaceous green, obscurely mottled ; the posterior part of 

 the body is of the same colour but with a variable number of pale 

 vertical bars, which vary greatly in breadth but are always nar- 

 rower than the green interspaces. A purplish black band em- 

 braces the posterior extremity of the caudal peduncle and there 

 is a black spot at the root of the dorsal fin in front. This fin is 

 opaque white with seven longitudinal rows of small black spots, 

 while the caudal has similar rows of black spots arranged verti- 

 cally. 



Nemachilus botia (Ham. Buch.). 



1878. Nemachilus botia, Day, op. cit., p. 614, pi. clvi, fig. 5. 

 1889. Nemachilus botius, Day, op. cit., p. 227, 



This fish is perhaps the most widely distributed of the Indian 

 species of the genus. It occurs in small streams all over northern 

 and central India and also on the Shan Plateau, and is not absent 

 from the Kistna as Day thought. 



Specimens from Medha agree with Day's var. aureus in that 

 the lateral line disappears behind the dorsal fin, but the number 

 of rays in that fin seems to be variable, 



Nemachilus anguilla, sp. nov. 



(Plate I, fig. 3; plate III, fig. i). 



D. 10 (2/8). P. 13. V. 8. A 6 (2/4). 



Habit elongate, shallow and somewhat compressed ; total 

 length 5I to 5* times that of head, 4I that of caudal fin, about 

 9 times the greatest depth of the body. Head narrow, conical; 

 snout bluntly pointed, with 6 slender and rather short barbels' 

 the rostral pair of which extend backwards almost as far as the 

 anterior border of the eyes, while the outer maxillary pair almost 



