Leuciscus. 



INDIAN CYPRINID.E. 



411 



X. — Leuciscus margarodes, J. M. 



Cyp.jmja, Buch. Coll.? 



Chola of the Assamese. 



The mouth is small, placed behind a prominent and narrow snout ; scales 

 small, about fifty-four in a row along the lateral line, and eighteen in an oblique 

 line from the ventrals to the dorsum ; they are easily detached, and are covered 

 with a copious pearly pigment ; lobes of the caudal of equal length ; back 

 green, sides silvery, two anterior suborbitar plates extend to the upper lip on 

 either side. The fin rays are, 



D.9: P.15: V.8: A.9: C.19. 



The stomach and intestine forms a thick capacious fleshy canal, equal to about 

 one and a half lengths of the body, inclusive of the head and caudal. This 

 species resembles Cyprinus morar so closely in form that I have not figured 

 it. It is also found in the Bramaputra, especially in Upper Assam. 



XI. — Cyprinus Cocsa, Buch. 



Op. Cit. PI. 3. f. 77. 



Four cirri ; back green ; sides, opercula, and lower parts of the body sil- 

 very ; faint streaks descend partially from the back to the sides, as in the genus 

 Opsartus ; suborbitar plates occupy the space between the eye and the cor- 

 ner of the mouth on either side, as in the last two species ; mouth horizontal ; 

 forty-two scales along the lateral line, and eleven in an oblique line from the 

 ventrals to the back ; snout prominent and deep, with a depression in front 

 of the upper jaw for the reception of the apex of the lower, which is without 

 a prominent tooth. The fin rays are, 



D.9: P.13: V.9 : A.IO : C.19: 



