342 gangetic fishes. Order V. 



and the curve very prominent before the vent, which is behind 

 the middle. On each side there is one lateral line parallel to 

 the belly. The scales are large and dotted, adhere firmly, and 

 are marked with concentric lines. 



The dorsal fin is nearly in the middle, and slopes very little : 

 the first two of its rays are undivided, and the first of them is 

 very short : the others are branched. The pectoral fins are low, 

 nearly as long as the head, and sharp above : each has ten rays. 

 The ventral fins are small : each contains eight rays. The anal 

 fin occupies the middle of the tail, and slopes a little backward : 

 its rays are like those on the back. The tail fin is divided into 

 two lobes, and contains nineteen distinct rays, besides several 

 short compacted ones. 



79th Species. — Cyprinus dancena. 



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

 and twenty in the anal fin. 



The Dancena (Dhankena) is a fish about an inch and a half 

 long, which I found in the estuary below Calcutta, near which 

 city both it and the third species (Cyprinus Laubuca) are call- 

 ed by the same name, having a strong resemblance. The form 

 is very much compressed, with the back rising gently to the 

 commencement of the fin, and the lower edge very prominent. 

 The colours are green above, and silver below. 



The head is half oval, flat above, broader than the body, and 

 small. The mouth is small, and descends backward obliquely. 

 The upper ^ara is the longest. The lips are fleshy. The eyes 

 are high, and far forward. 



The lateral line runs straight above the middle of the side. 

 The vent is near the middle. The scales are large in propor- 

 tion, but so thin, as scarcely to be visible without a glass, ex- 

 cept on the belly. 



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