Opsarius. INDIAN CYPRINIDiE. 421 



This species was found by Buchanan in the Bramaputra, where he says it 

 grows to four or five inches in length, and is little valued. 



XII. — Opsarius isocheilus. 

 t. 56. f. 1. i3. 



Cyp. vagra, Buch. Op. Cit. 269- Cyp. loya, id. Coll. 



A well formed, handsome species, with a small head ; jaws of equal 

 length ; intermaxillaries protractile ; depth of the body equal to about one- 

 third of its length ; the sides are silvery, and marked by a row of small oblong 

 spots placed transversely ; the mouth is cleft to the eyes. Fin rays are, 



D.9: P.13: V.9 : A.14 : C.16. 



Forty-two scales along the lateral line, and ten in each oblique row from 

 the base of the ventrals to the dorsum. Brachial plates exposed behind the 

 branchial aperture. Found by Buchanan in the Ganges at Patna. 



The rays of the caudal being so generally nineteen, I am in some doubt 

 as to their being only sixteen in this species, as observed by Buchanan. 



In two small collections of fishes received from very opposite parts of 

 India — Upper Assam and the heights on the Western side of Bengal, for which 

 I have been indebted to the kindness of Captain Hannay and Dr. Macleod — I 

 find a species which, with the exception of having the usual number of 

 caudal rays, differs but slightly from the above. 



The following are its characters — forty-four scales along the lateral line, 

 and eleven from the base of the ventrals to the dorsum, nine bars or trans- 

 verse spots on the back. 



D.9 : P.12: V.9 : A.U : C.19. 

 Habitat. — Hazarebaug, and Upper Assam. 



3 G 



