HYDROPHIS CRASSICOLLIS (N.S) ANDERSON, 
“Head hardly distinct from neck. Neck and body of nearly 
equal girth throughout. Round neck, 2” 2’; round middle of body, 
2” 9’”. Body elongated ; thirty-four series of scales round the neck ; forty — 
round the middle of the body; scales almost smooth on the neck and 
anterior third of the body ; two feeble keel-like tubercles, one before 
the other, very obscure, but more strongly developed on the two posterior 
thirds; ventrals twice the size of the adjoining scales, quite smooth, 
broken up here and there on the posterior five-eighths of the body. 
Two pairs of anal-shields, the central pair of moderate size, elongated ; 
the external pair very large. The vertical is pointedly linguate. One 
pree-, and two post-oculars. The third, fourth, and fifth labials enter the 
orbit on one side, but only the third and the fourth on the opposite 
side; the fifth being transversely divided into two shields, which do 
not reach quite as high as the orbital margin. Two pairs of large chin- 
shields, the anterior pair quadrangular and the posterior pair rather 
elongated ; olive-yellow above, yellowish on the scales and under 
surface ; sixty-two broad black bands on the back contracting to a 
point on the sides, but prolonged very indistinctly on to them and the 
ventral aspect, where they expand as a large blackish spot. Near the 
tail the dorsal bands become connected together, and their continuations 
on the ventral aspect follow a similar arrangement. Six black rings on 
the tail, confluent below; the latter third entirely black. Hooghly, 
below Calcutta. Length (total) 4 feet, 5” 6”, tail 4” 3”. The 
peculiarity of this species is its elongated body, the uniform breadth 
which it preserves throughout its length and the enlarged and smooth 
ventrals,” It is found in the tidal streams near Calcutta (Fayrer). 
