III. NOTES ON FISHES IN THE INDIAN 



MUSEUM. 



I. On a New Genus of Fish ci.osei<y resembung 



PSILORHYNCHUS, McClELI.AND. 



By Sunder Lal Hora, M.Sc, Research Assistant, Zoological 



Survey of India. 



While sorting out the fish of the genus Garra in the unnamed 

 collection of the Indian Museum, I happened to mistake the speci- 

 men described below for one of Garra. On closer examination it 

 has turned out to be an interesting species of a new genus, which 

 I propose to describe in this paper. 



Parapsilorhynchus, gen. nov. 



The new genus consists of small hill-stream Cyprininae closelj- 

 resembling Psilorhynchus , McClell., from which it differs in the 

 following characters :— 



(i) There are two blunt, cylindrical barbels on the snout in 

 the new genus, while in Psilorhynchus barbels are absent. 



(ii) In Psilorhynchus the air-bladder ' is always more or less 

 reduced, while in this genus it is large and is of the normal Cyprinid 

 type. 



(iii) In Psilorhynchus the upper lip is exposed, and the lower 

 lip, though it may be glandular, is never prominent, while in 

 Parapsilorhynchus the upper lip is concealed by a fringed, plicate, 

 labial fold which is densely covered with minute tubercles ; the 

 lower lip is very prominent, and usually there is either an indica- 

 tion of or a rudimentary disc behind it. 



(iv) In Parapsilorhynchus the origin of the dorsal is almost 

 opposite to that of the ventrals, while in Psilorhynchus it is in 

 advance of the ventrals. 



Of this genus I regard Psilorhynchus tentaculatus , Annand.,* 

 as the type-species. I assign to it also the new species described 

 below. While dealing with the genus Psilorhynchus in a recent 

 paper, I provisionally included Dr. Annandale's species in it, but 

 the discovery of the second species in the same range of mountains 

 makes it desirable to lay stress on the differences between the 

 forms found in the north-east of India, and those inhabiting the 

 hills in the western part of Peninsular India. Dr. Annandale tells 



' Hora, Rec. Ind. Mtis. XIX, p. 2og (1920). 



' Annandale, Rec. Ind. Mtis. X\'I, pp. I28-I2() (1919). 



