338 gangetic fishes. Order V. 



75th Species. — Cyprinus cosuatis. 



A Cyprinus of" the Cabdio kind, with ten rays in the dorsal 

 and seven in the anal fin ; with one lateral line on each side ; 

 and with an opaque body. 



I found the Cosuatis (Koswati) in the Kosi river. It has a 

 great resemblance to the Terio, (47th species,) but wants the 

 fine spots by which that fish is distinguished. The form is deep, 

 compressed, more prominent on the back than below. The co- 

 lour is silver, with a greenish back, and the scales on that part 

 are dotted towards the root. The ventral fins are red, all the 

 others are yellowish, and those of the back and behind the vent 

 are stained with black. The eyes are silver, stained above with 

 black. 



The head is oval, and of a moderate size. The mouth opens 

 at the extremity of the head. The jaws protrude much in open- 

 ing, and have no lips ; the under one is by a little the shorter. 

 The eyes are high and large. The gill-covers are generally 

 dotted. 



Before the fin the back slopes downward in a curve, and has 

 a rounded edge. The lateral line is straight, and descends 

 along the side from the shoulder. The vent is behind the mid- 

 dle. The scales are large, and there are no scale-like appendants 

 above the lower fins. 



The dorsal fin is somewhat rounded: the first of its rays is 

 short, and, with the second, which is smooth, is undivided ; the 

 others are branched. The pectoral fins are low, much shorter 

 than the head, and sharp above. The ventral fins are small : 

 each has nine rays. The rays of the anal fin are like those of 

 the back. The fin of the tail is divided into two lobes. 



76th Species. — Cyprinus guganio. 

 A Cyprinus of the Cabdio kind, with ten rays in the dorsal, 



