392 INDIAN CYPRINIDiE. Sarcohorince. 



the Cirrhins ; the remaining species of Cyprinus prop, may be formed into a 

 natural group characterised by a long dorsal and the absence of cirri : view the 

 subject as we may, however, Cypriiius devario, Buch. is not only different 

 from the true Cyprins, but from the whole of the PceonomincB. 



The body is much compressed, narrow, and deep ; the head small, without 

 cirri ; the dorsal and anal long, opposite, and without spines ; the fins feeble, the 

 mouth raised obliquely upwards, and the sides marked each with a broad 

 purple streak, and the abdominal canal, which is continuous with the stomach, 

 is altogether only equal to about the length of the body. For these reasons 

 I regard Cyprinus devario as a Perilampus, presenting relations of analogy only 

 to Cyprinus proprius, as indicated by the arched back and the long dorsal. 



The following are the characters by which it may be distinguished, — 

 depth equal to half the length, back arched, dorsal long, sides marked with a 

 single interrupted crooked light blue streak extended over the caudal, jaws 

 rough, with a blunt knob on the apex of the lower jaw, which is narrow 

 and directed upwards. The fin rays are, 



D.18 : P.IO : V.S : A.18 : C.19. 



There are about forty scales along the lateral line, which descends along 

 the third row of scales from the ventral margin. Seldom attains more than 

 two inches in length, and is common in Bengal and Assam, 



II.— Perilampus ostreographus, J. M. 

 t. 45. f. 3. 



The depth is almost equal to half the length of the body ; the back is 

 straight from the snout to the caudal, and the lower margin or abdomen is 

 much rounded and protuberant ; the head is small, directed obliquely 

 upward, the body much compressed, and the sides are marked with several 



