Clupanodon. gangetic fishes. 247 



brane contains five flat rays. The bones of the gills, on their 

 inner edge, have parallel slender teeth. 



The scales are flexible, and adhere firmly. The back slopes 

 in both directions from the commencement of the fin, and be- 

 fore this member has a sharp ridge. There is scarcely any la- 

 teral line. There is a scale-like appendant above each ventral 

 fin. 



The fin of the back is like a crescent, sloping backward. The 

 two first of its rays are short prickles close to the third, which 

 is undivided. The others are branched. The pectoral fins are 

 short, and sharp above ; each has fifteen rays, of which one on 

 each side is undivided, and the others branched. The ventral 

 fins are very short ; one of their rays on each side is undivid- 

 ed, and the others are branched. The fin behind the vent ex- 

 tends almost the whole length of the tail, and is like a crescent, 

 sloping backward. The first of its rays is a short prickle, ad- 

 hering to the second, which is undivided ; and the others are 

 branched. The tail fin is deeply divided into two sharp lobes, 

 and has nineteen distinct rays, besides some short compacted 

 ones on each side. 



3d Species. — Clupanodon manmina. 



A Clupanodon with fourteen rays in the fin of the back, and 

 twenty-four in that behind the vent; and with a black spot on 

 each shoulder. 



This fish is found in most of the fresh water branches of the 

 Ganges, and grows to about the same length with the Chacun- 

 da, but is reckoned better for eating. Its form somewhat re- 

 sembles that of a sword. Its colour is above dirty green, and 

 below silver, with pellucid fins, and a large black spot on each 

 shoulder. 



