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Show 1899.] REPTILES O F T H E M A L A Y P E N I N S U L A A N D SIAM. 651 supraoculars ; seven supraciliaries, first and last largest; frontoparietals distinct; interparietal distinct, smaller than frontoparietals ; parietals forming a suture behind the interparietal; a pair of nuchals and a pair of temporals border the parietals ; usually fifth upper labial largest and bordering the orbit; in one specimen in which both fourth and fifth border the orbit, the fourth is the largest upper labial. Ear-opening round, moderate-sized or small. 28 scales round the middle of the body (in one specimen 30), subequal; dorsals smooth. Marginal praeanals slightly enlarged. The adpressed limbs fail to meet; the hind-limb is in length to the distance between axilla and groin as 1 is to from lj| to 2^« Tail thick. Colour (in life). (Drawn up from fifteen Siamese specimens.) Upper surface of head, body, tail, and limbs olive-brown, each dorsal scale with a darker spot forming six more or less continuous parallel narrow black lines, which are most distinct anteriorly and grow fainter posteriorly (in some individuals only the centre and outer pair of lines are distinguishable). Along each side there is a very dark brown or black line, which starts from tbe nostril, passes through the lower part of and below the eye, and is continued to the tail, where it gradually disappears. This dark lateral line is separated from the olive-brown back by a uarrow pale yellow dorsolateral line, which commences from behind and above the eye, runs all along the neck and body and is continued, less distinctly, on to the tail. The limbs, sides of the head, body and tail vary from pale pink to bright vermilion, and are spotted with black and yellow; these spots are largest on the body and very small on the limbs. Lower surfaces : chin, throat, and lower labials vary from bright sulphur-yellow to pale coral-red ; body varies from bright sulphur to greenish yellow or greyish buff ; tail varies from yellow* to pale coral-red. The whole surface of the lizard is very metallic. Size. The largest specimen, of nineteen I have measured, was 55 m m . from snout to vent, the arm 9 mm., and the leg 13 mm., but the tail only 40 mm., being a reproduced one,but if perfect (according to an average arrived at from nine individuals with perfect tails) it would have been 67 m m . long, giving a total length of 122 m m. Hab. Burma, Hongkong, Siam, Malay Peninsula, Borneo (where I caught a specimen on Pulo Gaya), Celebes. 86. LYGOSOMA ALBOPUNCTATUM (Gray). Lygosoma albopunctatum, Blgr. Cat. Liz. iii. p. 309 Hab. India, Assam, Burma, Malay Peninsula. N#B.-LYGOSOMA ISODACTYLUM (Giinther). Lygosoma isodactylum, Blgr. Cat. Liz. iii. p. 339. The type-specimen was obtained by M . Mouhot in Cambodia, so the species may eventually be found in Siam. Hab. Cambodia. |
