1899.] EBPTILBS OP THE MALAX PENINSULA AND SIAM. 651 



supraoculars ; seven supraciliaries, first and last lai'gest ; fronto- 

 parietals distinct ; interparietal distinct, smaller than fronto- 

 parietals ; 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 praeauals 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 1^'^ to 2j^- 



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 leas 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 the nostril, passes 

 through the lower pai-t of and below the eye, and is continued to 

 the tail, where it gradually disappears. This dark lateral line is 

 separated from the olive-brownbackby a narrow pale yellow dorso- 

 lateral 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 mm. from snout to vent, the arm 9 mm., and the leg 18 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 07 mm. long, giving a total length of 122 mm. 



Hah. Burma, Hongkong, Siam, Malay Peninsula, Borneo (where 

 I caught a specimen on Pulo Glaya), Celebes. 



86. Lygosoma albopunctatum (Gray). 

 Lygosoma alhopunctatum, Blgr. Cat. Liz. iii. p. 309 

 Hab. India, Assam, Burma, Malay Peninsula. 



N.B. — Lygosoma isodaotyltjm (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 iSiam. 

 Hah. Cambodia. 



