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directed backwards on neck and forwards on the body. Sides and 

 legs yellow dotted. 



Inhabits the North-Western Provinces. 



V. nebulosus, Gray, 



Nostril nearer the eye than nose. A series of enlarged 

 shields runs along the middle of the superciliary region. Scales 

 of neck and back with an obtuse keel ; of the belly smooth in 

 80 transverse rows. Colour reddish brown mingled with yellow, 

 and yellow spotted. A few indistinct streaks about the nape and 

 dark bands towards the end of the tail. Head yellowish. Grows 

 to four and a half feet, of which the tail is three-fifths. 



Inhabits Bengal and Birmah. 



"&" 



Hydrosaurus, Wagler. 



Nostrils rounded, near the extremity of the snout. Other 

 characters as in Varanus. 



H. salvator Laur. 



Nostrils anteriorly placed. A series of enlarged shields covers 

 the inner half of the superciliary region. Scales of the neck 

 and back with a very obtuse keel ; of the belly smooth in 90 

 transverse rows. Colour dark brown or brownish black. Limbs 

 yellow spotted. Four transverse bands of yellow rings or ocelli 

 across the back. Tail at base yellow and black mottled, and 

 then posteriorly broadly black and yellow banded. Beneath 

 yellowish ; throat black spotted. Grows to nearly seven feet in 

 length, of which the tail is three-fifths. 



Inhabits Bengal, Ceylon and Birmah. 



PsAMMOSAURUS, Fitziuger. 



Tail rounded without keel. Other characters as in Varanits. 



P. scincus Merr. 



V. ornatus Carlleyle. J. A. S., 1869, p. 192. 

 Nostrils nearer the eye than nose. Superciliary scales small 

 and granular. 



