1872.] F. Stoliczka — On Indian Lizards. 115 
ed them at Hardwar, where the Ganges leaves the hills for the plains. 
They measure from 4 to 18 inches, in all stages of growth, the tail when 
perfect is fully \ of the total length. I find that in former years I also 
obtained this species at Misoun, and on the road from K alka to Simla, hav- 
ing noticed the difference of the scales on the neck and back, as compared 
with those of the next species, but unfortunately I have no specimens by 
me now. 
Stellio tuberculatum, (Gray), (I. R-, p- !•”)• 
PI. Ill, fig. 3. Upper view of the anterior part of the body. 
This well known species is readily distinguished from the last by the 
much smaller size of the enlarged scales on the hack, which are in from 13 to 17 
longitudinal series in the middle of it ; on the middle of the neck the scales 
are not at all enlarged, but there is a low, often minute, nuchal crest present. 
The structure of the head-shields is in both species very similar, but they 
are always less distinctly keeled in St. tuber culatus, sometimes nearly, and 
above the eye3 always, smooth ; the enlarged row of scales below the eye 
is well marked ; the nasal sometimes touches the rostral and first labial, but 
more generally it is separated from them by smaller shields ; the enlarged 
spiny scales on the side of the neck are less prominent in this, than in the 
former species ; the scales of the belly are proportionately smaller, in 48—54 
transverse series ; the enlarged scales at the sides are generally few, occasion- 
ally arranged in transverse rows, but sometimes they are nearly entirely absent ; 
rarely, in male specimens, are these spines nearly as numerous and irregularly 
distributed, as in the former species. The patch of enlarged callous scales on 
the middle of the belly is much more often present, than in Dayanus. The fore- 
limb, when laid backward, generally does not reach the groin, but occasionally 
it does so ; the hind-limb, when laid forward, usually reaches the tympanum, 
sometimes the eye, rarely the front edge of the eye, but I have not seen one 
specimen in which it extends to the rostral shield. I he largest specimen I 
measured is 13 j inches, of which the body is very nearly 5, and the tail 85 - 
inches. On the whole, both the limbs and the tail are somewhat shorter in 
the present species than in the former. 
There is also a difference in coloration. Toung and adult specimens 
are above on body and limbs of a dark olive brown or almost blackish colour, 
with numerous darker spots in the young, indistinct in the adult, and inter- 
mixed with yellowish spots, these being fewer, but often larger than in Daya- 
nus ; occasionally they are entirely absent. The head in the adult is above 
cinereous olive, spotted black and yellowish at the side ; in front of the shoulder, 
on the breast, and also at the sides of the body, there are often numerous 
bright yellow or orange spots present. Lower side uniform dull white in young, 
generally spotted with dusky on the throat. In adults the throat becomes 
