FASCICULI MALATENSES 
155 
true chamaeleon,* very largely from a psychological or psychico-physiological 
stimulus. The same view is illustrated by the fact that dark vertical bars, 
which are a fairly conspicuous feature in the young at all times, only become 
apparent in the adult when it is annoyed. My note on Calotes emma in Dr. 
Gadow’s Amphibia and Reptiles (pp. 518, 519) should refer to this species.’ 
36. Calotes emma, Gray 
Bukit Besar and Jalor 
‘ General colour pale sage green ; a broad longitudinal band of dirty 
white on each side ; irregular transverse markings of sienna brown, becoming 
darker where they cross the longitudinal band ; dorsal and nuchal crests pale 
sage green ; lateral surface of head bright green, with a dark bar running 
backwards from the angle of the eye. Skin and base of scales on gular pouch 
dark crimson lake ; a triangular sooty pouch immediately in front of fore 
limbs. 
‘ Jalor is, so far as is known, the southern limit of this species, which is 
quite common in the interior of Patalung ; but it is a jungle-loving form, 
and, as such, liable to escape detection. Its powers of colour change are slight, 
consisting chiefly in an accentuation of the darker markings on annoyance or 
irritation.’ 
37. Liolepis belli!, Gray 
(PI. X, Fi^. 2.) 
Patani and Jalor. 
The young from Patani recall, by their livery, the young of various 
Lacertids of the genera Acanthodactylus and Eremias. The following notes on 
their life coloration were taken by the collectors : — ‘ Tail bright brick-red ; 
median and lateral stripes on body lemon-yellow ; pale yellow spots and faint 
traces of cross-bars occur between the stripes on the sides. In the adult, the 
tails become dull grey, and the pale yellow spots and traces of cross-bars 
increase in size and become orange and purple respectively, more brilliant in 
the male than the female, while bright blue markings, also more brilliant 
and more extensive in the male, make their appearance on the ventral surface. 
‘In the Patani States, and apparently also in Kelantan, Trengganu, and 
Pahang, Liolepis bellii is confined to sandy localities, almost bare of vegetation, 
betv/een the foot hills and the sea. On the West Coast, it is common on the 
coast and islands of Trang, and has been recorded from other localities, but 
I. Poulton, The Colours of Animals^ pp. 84 and 90. 
