J4 Records 0/ the Indian Museum. [Vol. XXII, 



me that he considers these forms to be probably convergent ; but 

 in describing Psilorhynchiis tentaculatus preferred not to set up a 

 new genus on a monot^'pic basis. 



My new genus has some points in common with Garra ; the 

 main characters that distinguish it from this genus are the follow- 

 ing :— 



(i) The presence of two characteristic blunt barbels in a posi- 

 tion quite different from that in any species of Garra with two 

 barbels. 



(ii) The gill-openings extend to the ventral surface, whereas 

 in Garra they are usualh' restricted to the sides. 



(iii) In Para psilorhyncliHs the mouth is very small, while in 

 Garra it is usualty much wider. 



Parapsilorhynchus discophorus, sp. nov. 

 D, 2/6. V. 7. A. 7. P. 16. 



This is a small-sized fish, with the back moderately elevated. 

 The dorsal profile rises gracefully from the tip of the snout to the 

 origin of the dorsal, beyond which it slopes imperceptibly down to 

 the base of the caudal fin. The ventral surface is somewhat 

 flattened and its profile is almost straight and horizontal. The 

 length of the head is contained 4^ times, the depth of the body 

 near the origin of the dorsal fin 4|- times, and the length of the 

 caudal fin 3! times in the total length without the caudal fin. The 

 eyes are of a moderate size and are situated slightly nearer to the 

 posterior margin of the operculum than to the end of the snout ; 

 their diameter is contained 3J times in the length of the head, 

 twice in the interorbital width and ij times in the length of the 

 snout. The gape of the mouth is ij times the diameter of the 

 eye. The head is short and narrow; its greatest width is con- 

 tained ij times in its length. There are definite rows of open 

 pores on the sides and upper surface of the head and also along 

 the opercular borders on the under surface. The greatest height 

 of the caudal peduncle is equal to its length. The vent is situated 

 in the beginning of the last fourth of the distance between the end 

 of the snout and the base of the caudal fin. There is a pair of 

 short barbels on the snout. The barbels are thick and stunip)- 

 and are not pointed distally ; they are situated ventrally, a short 

 distance behind the anterior end of the snout and are parth- visi- 

 ble from above. There is a deep groove on either side running 

 from the base of the barbel to the angle of the mouth. The mouth 

 is small and crescentic, and is situated on the ventral surface con- 

 siderably behind the anterior end of the snout. The upper labial 

 fold is long and fringed and is covered with minute tubercles. 

 The lower lip forms the anterior free border of the mental disc and 

 is studded with fairly big tubercles. The labial fold tapers towards 

 the angle of the mouth and partially covers the lateral borders of 

 the lower lip. The most significant point about this species is the 

 presence of a small, rudimentary disc behind the lower lip. The 



