Cirrhinus. INDIAN CYPRINIDZ. 315 
corner of the orbit ; the mouth is similar to that of C. rohita, except that it is a 
little smaller, and the two bony limbs of the lower jaw stronger, and their 
transverse apophyses more massive. See t. 54, f. 5. 
Buchanan observed that a variety of Cyp. nandina occurs with twenty-three 
rays in the dorsal instead of twenty-six. The variety alluded to is no doubt 
the one here described; affinities run so close between several of the larger 
species of Cirrhins that it is only by comparison of many individuals, that we 
can arrive at satisfactory specific distinctions. This species was observed by 
Buchanan in the Goruckpur district, on the northern frontier of Bengal; the 
individuals I met with in Assam, in March, were found in sandy streams which 
they had entered probably for the purpose of spawning. They are seldom 
seen so high in the Bramaputra as the rapids, and never, I believe, so low as to 
come within the influence of the tides, which effect a change by the deposit of 
mud instead of sand, no less remarkable in the bottoms and banks of rivers, 
than in the character of the fresh water fishes which are found within their 
influence. 
II].—Cyrrinus Nanpina, Buch. 
Pisce. Gang. t. viii. f. 84. Nandin of the fishermen. 
Length of the head compared to that of the body as one to three, forty- 
four scales along the lateral line, and twelve in an oblique line from the base 
of the ventrals to the dorsum, which is much arched. The dorsal commences 
on the most prominent part of the back, at a distance from the head, equal to 
the length of that organ. The fin rays are, 
D.26: P.16: V.9: A.7: C.19. 
The specimen from which this description is formed, was found by Mr. 
Griffith in the great jeels on the northern side of Bengal. I think I have 
met with it in the Bramaputra as high as Gowahattee, but it disappears where 
the currents become rapid, and the water more cool and clear. Buchanan 
found it very abundantly in the marshes adjacent to the ruins of the ancient 
