188 SCINCIDE. 
39. Mabuia rudis. (Purr XI. fig. 3.) 
Snout moderate, obtuse.- Lower eyelid scaly. Nostril behind 
the vertical of the suture between the rostral and the first labial; a 
postnasal; anterior loreal not deeper than the second, in contact 
with the first labial; frontonasal broader than long, in contact with 
the rostral and rarely also with the frontal; latter as long as or 
longer than the frontoparietals and interparietal together, in contact 
with the second, rarely with the first and second supraoculars ; four 
supraoculars, second largest ; six supraciliaries, first and third 
largest ; frontoparietals distinct, larger than the interparietal, which 
entirely separates the parietals ; a pair of nuchals ; four labials 
anterior to the subocular, which is large and not narrowed inferiorly. 
Far-opening roundish, smaller than a lateral scale, without or with 
a few projecting granules anteriorly. Nuchal, dorsal, and lateral 
scales very strongly tricarinate, the keels projecting slightly beyond 
the posterior margin of the scale ; 30 or 32 scales round the middle 
of the body, of which 10 or 12 (ventrals) are smooth ;. dorsal scales 
largest. The hind limb reaches the axilla or the shoulder. Digits 
long, strongly compressed ; subdigital lamelle obtusely keeled. 
Olive-brown, sides dark brown or with a dark brown light-edged 
lateral band; lower surfaces greenish or brownish white; throat 
sometimes black-spotted. 
millim millim. 
Total length ...... 27 Fore limb ........ 38 
Cad oe lanai easenenc 24 Hind limb........ 57 
Width of head .... 16 Tail (injured) .... 170 
Ody sietiete se <tr ei 80 
Borneo, Sumatra. 
a-e. Ad. & yg. Matang. 
jf. Ad. Sumatra. Hr. Karl Bock [C.]. 
40. Mabuia siamensis. 
Eumeces siamensis, Giinth. Rept. Brit. Ind. p. 91. 
Euprepes (Tiliqua) bicarinatus, Peters, Mon. Berl. Ae. 1867, p. 22 *. 
( ) ruhstrati, Fischer, Abh. Naturw. Ver. Hamb. ix. 1886, 
p. —, pl. i. fig. 2. 
Snout moderate, obtuse. Lower eyelid scaly. Nostril behind the 
vertical of the suture between the rostral and the first labial; a 
postnasal ; anterior loreal not or but slightly in contact with the 
first labial ; supranasals (usually) in contact behind the rostral ; 
frontonasal broader than long; preefrontals in contact mesially ; 
frontal shorter than the frontoparietals and interparietal together, 
in contact with the second supraocular; four supraoculars, second 
largest ; six supraciliaries, first largest ; frontoparietals distinct, as 
long as or slightly shorter than the interparietal, which entirely 
separates the parietals; a pair of nuchals; four (or three) labials 
anterior to the subocular, which is large and not narrowed inferiorly. 
* Type examined. 
