Gobio. INDIAN CYPRINID. 351 
fully taken from life. The altitude of the deepest part of the body is con- 
tained four and a half times in the entire length, and the head and caudal are 
each equal in length to the depth of the body. There are forty-four scales 
along the lateral line, and fourteen in an oblique row from the base of the 
ventrals to the dorsum. The dorsal fin is placed somewhat nearer to the 
nape than to the base of the caudal fin, and the length of its base is equal 
to the depth of the body; the ventrals are placed opposite the dorsal, and the 
space between the anal and caudal is equal to half that between the former 
and the ventrals. The fin rays are, 
DG: Babiice Vi.93 A.7: 1C.19; 
The eyes are placed almost in the anterior third of the head. Buchanan 
states that the pupils are circular, but I have found them oval, with the long 
diameter vertical. In the variety called Rewah, however, the pupils of those 
I have examined are circular, and if we could rely on such peculiarities as con- 
stant, they would afford an excellent character by which we might distinguish 
the species in very difficult cases. 
The mouth is placed at the end of the head, having two small cirri placed 
anteriorly on the upper lip. The under jaw is formed of a very slender rim 
composed of two bones meeting in the middle at the chin, where they are 
soldered firmly together. 
The outer extremities of these ossa siagona,* as they may be named for 
convenience, are articulated above to the corresponding extremities of the 
intermaxillaries, and behind to the anterior extremities of what Cuvier named 
in the Perch, the angular bone. It has already been shown that the angular 
bones really form the lower jaw both in the Cirrhins and in the Barbels, with 
this difference, that in the one case they are united, and in the other 
unattached by a bony union in front. In the Gudgeons, however, and in 
this species in particular, the angular bones are nearly parallel to each other, 
* From 2cayov, the jaw bone. 
