Cirrhinus. INDIAN CYPRINID. 321 
The length from the operculum to the base of the caudal is four and a 
half lengths of the head, which is small and fleshy. The posterior margin of 
the operculum is equally rounded forming part of a circle, and the eyes are 
placed intermediate between the branchial aperture and the snout. The dorsal 
is placed somewhat nearer to the caudal than to the head, and forty-two scales 
are ranged along the lateral line, which is but slightly depressed over the 
pectorals ; fifteen scales form each oblique line extending from the base of the 
ventrals to the dorsum on either side; the ventrals are placed a little behind 
the dorsal. The fin rays are, 
DRGs 5 VEO PAR C220! 
It is observed by Buchanan that in some places, as at Moonghyr where 
the Ganges is clear, passing over a pure sandy or rocky bottom, many of the 
scales assume a ferruginous colour, and the fish is supposed by the Natives to 
be a different species, which they call Kundhna, though he has no doubt this 
difference of colour is accidental. Buchanan farther remarks, that this species 
is very common in all the rivers and ponds of Bengal, and that it is also found 
in the Western Provinces about a foot and half in length, and sometimes even 
twice that size, and is a well flavoured light food, but contains many small 
bones. In general, Buchanan observes, it is of dark colour with a silvery gloss, 
inclining to yellow, and the scales are covered with numerous black dots. It is 
a very common fish in the Calcutta market. 
IV.—Cyprinus rouwita, Buch. 
Pisce. Gang. Pl. 36, f. 85, t. 41, f. 2. 
The head of this species is a third longer than that of C. ca/basu, and is 
equal to the depth of the body, while in the latter species the length of the 
head is little more than about half that depth. Before I was aware of the 
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