242 gangetic fishes. Order V. 



It diners little in value or appearance from the Purava, and, 

 therefore, I have noted only the discriminating circumstances. 



The edges of the back and tail fins are black coloured. In 

 adults, the pectoral fins are black, with a green gloss. 



The ends of the bones supplying the place of the upper lip 

 extend but a very little beyond the corner of the mouth. The 

 membrane of each gill-cover contains thirteen rays. 



The back rises more suddenly from the head to the fin than 

 in the Purava. The vent is before the middle. The scale- 

 like appendant above the pectoral fin is divided into two. 

 There is no prickle before the fin on the back. 



The back fin is far forward, much shorter than its height, and 

 slopes very suddenly backward. It contains fourteen rays, of 

 which the two first are undivided, and the first is very short ; 

 the others are branched. The pectorals are long, the first ray, 

 which is like a bristle, reaching to the middle of the tail. The 

 other fourteen are much shorter, the last being undivided, and 

 the others branched. One ray on each side of each ventral fin 

 is undivided, and the intermediate ones are branched. The 

 fin behind the vent contains seventy-four rays, of which the 

 three first are undivided, and lengthen from the first, which is 

 the shortest. The others are forked, and the last, which is 

 die shortest, is split to the root. The fin of the tail is deeply 

 divided by an obtuse sinus. The lower lobe is the longest, 

 and is sharp ; the upper is blunt, as if its end had been cut 

 away. The distinct rays are in all nineteen, besides some 

 short compacted ones at each side. 



XVII. Genus. — Clupanodon. 

 Fishes of the fifth order, with no teeth in the jaws ; with an 

 oblong scaly body, sharp-edged beneath ; with one short fin on 



