128 JOURNAL, NATURAL HIST. SOCIETY OF SIAM. Vol. I. 
discovered by M. Mouhot in Cambodia during his travels in 1858-60. 
The first two were caught in the stone quarries at Sanam 
Cheng (N. of Lopburi) but were so badly preserved as to be useless. 
A third was sent me by Mr. Greene, the station-master at Lopburi, 
having been caught in the station, and two more were shortly after- 
wards dug up in a garden at Sam Kok. In July, at Chong Kae, 
I caught four specimens alive, having found them beneath the stacks 
of fire-wood in the station yard. I kept them for some time, until 
one nicht a horde of ants invaded their cage and devoured them. 
These lizards, as might be expected from the rudimentary 
condition of their limbs, are chiefly subterranean in their habits. 
They move about with a sinuous snake-like action, the fore-legs being 
in frequent use, the hind ones not at all, but pressed closely back 
along the sides of the body. In pushing their way about through 
small cracks and crevices and in burrowing in the earth, the fore-limbs 
also remain idle, and the creature becomes entirely snake-like in its 
movements. They can, however, be extremely active, and elude 
capture with great agility. 
In lepidosis my specimens differed in no way from the type 
description, except in the number of scales round the body. This is 
given in the Catalogue of Lizards in the British Museum as 30. In 
mine they varied from 30 to 34. 
Their color also varied slightly and was (in life) as follows :— 
Above, dark yellowish, thickly powdered with very dark brown, this 
color often confluent and forming patches. In one of them these 
patches were so extertsive as to practically obscure the ground color. 
Sides, with a dark edge to each scale, forming oblique lines upwards 
and backwards. Below, pale yellow or yellowish white, speckled 
irregularly with brown. In the only half-grown specimen I obtained: 
the belly was of a uniform pale yellowish color. Labials, 1st excepted, 
barred with yellow and brown alternately. 
The drawing, by Mrs. Stephen Groves, is from a specimen in 
which the tail had been reproduced. This appendage, therefore, is not 
shown in its full length,. Normally it is nearly the length of the head 
and body. 
MALCOLM SMITH. 
May, 1914. 
