314 REPORT (IN FISHKS. TAKT i: COKITIDAE 



witli 2 tji 4 series of spots ami the anterior ray >>i tlie (lorsal fin is provided witli 3 nr 4 

 l)iaci< splits aliinj^ the front niarj^in. Tlie dorsal surface of tlie paired fins and thi- anal iin 

 are sometimes jirovided willi Mack jialches. 



Localitv: Nine specimens of N. deTerrai were cilitaiiicd l>y the ^■ale North India 

 Ivxpeditioii from the Man I.a^oon on the 4tii and 3th of July. It is an isolated !a.L;oon 

 in the drowned valley at an altitude of 14,008 ft. 



Rt'iiuirks: The most distinijuishing- feature of N. deTerrai is the iL^real len.s;th of its 

 dorsal fin. The other fins are also eloni^atcd. 1"he form of the caudal Iin is very charac- 

 teristic of the species. 



Bionomics: From the extensive air-hladder in the abdominal cavity, and from the 

 nature of the fins, it is clear that the fisli is adajited to live in stationary waters. The gen- 

 eral facies, especially the \\hi])-like caudal peduncle, suggests that the fish is a fast swimmer. 

 For feeding purposes, the fish proliahly adheres to rocks with the help of the jjaired fins and 

 .scrapes off animal and vegetable matter. In the ca.se of two .specimens di.s.sected the stomach 

 was found to be full of a whitish, pidi)y material \vithout any sand or small bits of stones. 

 The alimentary canal is not much convoluted: its length is about three-fifths of the total 

 length. It wiiuld thus seem to be a flesh-eating species. 



Measurements in niilinnetrcs 



$$$99 



Total lenglh including caudal 104.0 95.0 95.0 83.0 68.0 



Length of caudal 21.0 18.5 19.0 14.8 11.5 



Length of head 17.9 16.5 15.2 14.0 12.0 



Width of head 11.5 9.2 8.8 9.8 7.0 



I leight of head .' 10.') 10.0 9.5 8.2 6.5 



Depth of body 12.0 10.5 9.0 12.0'^ 8.0 



Length of snout 6.5 6.5 6.5 5.0 4.5 



Diameter of eye 4.2 3.5 3.8 3.5 2.8 



Intennbital width 5.2 5.0 4.0 3.5 3.2 



Length of caudal peduncle 23.0 ■ 21.6 20.0 20.5 16.0 



Least height of caudal peduncle 4.8 4.3 4.0 3.2 2.5 



Longest ray of dorsal 19.8 17.8 17.0 15.0 14.2 



Longest ray of anal 15.0 14.0 13.2 12.5 9.0 



Length of pectoral 17.2 15.0 15.0 13.2 11.5 



Length of ventral 15.5 13.8 14.0 1 1.5 10.0 



Nemachilus hutchinsoni, sp. nov. 



D.3/8; y\.2/5; P.9; V.7; C.16 



In Nemachilus hutchinsoni the head and the anterior ])art of the body are depressed 

 so that the ventral surface is somewhat flattened. In the tail region the body is compressed 

 and whip-like, d'he head is short, high and broadly pointed ; its length is contained from 

 5.4-5.6 times in the total length and from 4.4-4.6 times in the length without the caudal. The 

 width of the head is contained from 1.4-1.6 times and the height of the head at the occiput 1.6 

 times in its length. The eyes are situated nearer to the tip of the snout than to the posterior 



" The abdominal portion is greatly swollen due to heavy parasitisation by worms. 



