Opsarius. INDIAN CYPRINIDZ. 419 
found in Bengal. It appears to differ from Opsarius cirratus in having’ 
larger scales, but the markings and fin rays in both are alike, which made 
me at one time mistake the latter for Cyprinus bendelisis. 
X.—OPSARIUS GRACILIS, J. M. 
tp Aviauae ll. 
Cyprinus goha, Buch. 
Korang, of the Assamese. 
The length of the head to that of the body is as two to five, the body is 
long and slender, covered by minute scales; the mouth is widely cleft, and 
horizontal, extending behind the eyes, which are placed in the anterior third 
of the head. The dorsal fin is placed over the space between the ventrals and 
anal; the pectorals are of moderate size, the ventrals small. The fin rays are, 
DMO E13 V9) Allo "Cas: 
One or two irregular bars of round green spots on each side; sides bright, 
and silvery white; the back is green, and slightly, but uniformly, raised 
in the middle. The body is moderately compressed, and the dorsal and 
ventral margins. extend uniformly over the head to the apices of the jaws, 
which are placed in the axis of the vertebral column ; the apex of the lower 
jaw is armed with a prominent blunt knob. 
One of the most peculiar characters, perhaps, of this species, consists in 
the third suborbitar plate representing the corresponding bone of the sub- 
orbitar chain in the Perch, being expanded, and extended backward behind 
the eye, causing a remarkable elongation of the head, as in some of the 
Barbels, especially B. megacephalus. Yet considering the wide interval 
between these groups, we cannot look upon this peculiarity otherwise 
than a relation of analogy, similar to that which the compressed and 
