340 SCINCID 2. 
five times in the distance between axilla and groin. Digits very 
short, compressed, not very unequal; fourth toe scarcely longer 
than third; subdigital lamelle smooth. Tail thick, a little shorter 
than head and body. Olive above; sides lighter, with a dark edge 
to each scale, forming oblique lines directed upwards and backwards ; 
lower surfaces yellowish, irregularly dotted with dark brown. 
millim. millim 
Total length ...... 201 Fore limb ........ 115 
Headey ccsceieie and 14 Hind limb........ 16° 
Width of head .... 9 Dall \yugteewea die ae sn 93 
Body .....-.eeees 94 
Siam : 
a. Ad. Camboja. M. Mouhot [C.]. (Type-) 
154. Lygosoma chalcides. 
Podophis chalcides, Gray, Cat. p. 88. 
Lacerta chalcides, Linn. S. N. i. p. 369. 
Anguis quadrupes, Linn. J. ¢. p. 890. 
Lacerta serpents Bloch, Beschift. Ges. Naturf. Freunde, ii. 1776, 
p. 28, pl. ii. 
Scincus brachypus, Schneid. Hist. Amph. ii. p. 192. 
Seps pentadactylus, Daud. Rept. iv. p. 325. 
Mabuya serpens, Fitzing. N. Classif. Rept. p. 53. 
Lygosoma serpens, Gray, Zool. Journ. iii, 1828, p. 228. 
—— aurata, Gray, Griff. A. K. ix. Syn. p. 72. 
—— abdominalis, Gray, Ann. N. LL. ti. 1839, p. 382. 
brachypoda, Dum. § Bibr. v. p. 721. 
chalcides, Cantor, Cat. Mal. Rept. p. 49. 
Eumeces chalcides, Giinth. Rept. Brit. Ind. p. 90. 
Body much elongate, limbs very weak; the distance between the 
end of the snout and the fore limb is contained four or five times in 
the distannce between axilla and groin. Snout short, obtuse. 
Lower eyelid scaly. Nostril pierced in the centre of the nasal; no 
supranasal; frontonasal broader than long, forming a suture with 
the rostral and with the frontal; latter shield small, a little broader 
than the supraocular region, in contact with the first and second 
supraoculars; four supracculars; seven supraciliaries; fronto- 
parietal single, large; interparietal distinct; parietals forming a 
suture behind the interparietal; first upper labial largest, fifth 
below the centre of the eye. THar-opening punctiform, about as 
large as the nostril. 24 or 26 smooth scales round the middle of 
the body. Preanals not or very slightly enlarged. The fore limb, 
stretched forwards, reaches about halfway from the ear ; the hind 
limb equals about the length of the shielded part of the head. 
Digits extremely short, subequal. Tail thick, as long as, or a little 
shorter than, head and body. Pale brown above, with more or less 
distinct darker longitudinal lines running between the series of 
