Dec. 1915. ON REPTILES AND BATRACHIANS FROM 243 
THE COAST AND ISLANDS OF S)UTH-EAST SIAM. 
Koh Kra, Koh Mak, Koh Kut, Klong Menao, Klong Yai, S. E. 
Siam ; Ok Yam, Franco-Siamese boundary on coast. 
A very common lizard wherever it occurs and always frequent- 
ly met with, owing to its boldness and conspicuous habits. 
Apart from the orange or red wash on the shoulders and flanks 
which is probably assumed in the breeding period and thus is not 
constant, three colour phases occur in the present series. In the 
first the back and sides are unmarked, except for a black dorso- 
lateral line. In the second, the back is marked by five black 
lines running between the rows of scales, which become in- 
distinct posteriorly ; between the outer of these lines and the dark 
line defining the back from the sides, two rows of scales occur. In the 
third the shoulders and sides are irregularly spotted with white, and 
the dorsal region may be either striped or plain. 
17. LyGosoma MAcULATUM, Blyth. 
Flower, P.Z.S., 1899, p. 648; Les Reptiles de I’Indo-Chine, p. 38 
(1907). 
Many specimens from Koh Kut, and examples from Koh Chang, 
Koh Mak and Klong Yai. 
Upper surface bronze brown spotted with black and yellowish ; 
labials and sides of neck, red. Sides of body :—first a black stripe 
spotted with yellowish, below this a row of yellowish spots and beneath 
silver spotted black. Under surface white, belly yellow. 
Snout to vent of largest individual (tail missing) 65 mm; of 
another 60, tail 123 mm. Most of the specimens have 42 scales round 
the body. 
18. LyGosoMA BOWRINGHI, Giinth. 
12 specimens. 9 from Klong Yai, 1 example Koh Klum, 
2 Koh Kra. 
Above, brown becoming reddish towards and on the tail. Below, 
throat greenish-white, entire abdomen, yellow; tail and limbs, sides of 
neck and shoulders red, this narrowing over the forelimbs and widen- 
ing to enclose the hindlimbs. Some black and white spots behind 
the forelimb, and a black line running from the eye to the mid-body. 
This little skink is widely distributed throughout the country, in 
many places being exceedingly common. It is an extremely active 
creature in spite of the shortness of its legs. 
