366 SCINCIDA. 
pterygoids toothed. Lateral teeth conical or with spheroid crowns. 
Eyelids well developed, scaly. Tympanum distinct, deeply sunk. 
Nostril pierced in the nasal; supranasals present; prafrontals, 
frontoparietals, and interparietal distinct. Limbs well developed, 
pentadactyle ; digits subcylindrical or compressed, with transverse 
lamelle inferiorly, not serrated laterally. 
North and Central America; Eastern and South-western Asia ; 
North Africa. 
Synopsis of the Species. 
I. Longitudinal series of dorsal scales in even number; first upper 
labial forming a suture with the nasal and the ile or the 
anterior loreal. 
A. 28 or more scales round the middle of the body; the length 
of the hind limb not more than twice le a half in the distance 
from snout to vent. 
A postnasal; 36 to 42 scales round the “ 
Pde acted naaehrieateacia caver 1. longirostris, p. 368.  ™ 
No postnasal; 32 scales round the body ; 
snout elongate and pointed ........ 2. guitulatus, p. 369. . 
A postnasal; 28 to 32 scales round F 
the: body: -swsav gun aaswawew enn ws 3. quinquelineatus, p. 869. % 
No postnasal; 28 scales round the 
DOO Yes) eacuis dur bis ae octane dsebihar sates 4. sumichrasti, p. 371. 
B. 28 scales round the middle of the body; the length of the 
hind limb more than twice and a half in the distance from 
snout to vent. 
1. A median series of transversely 
enlarged subcaudals....... '. 10. obsoletus, p. 374. 
2. Subcaudal scales not enlarged. 
No postnasal; supranasal in contact 
with the prefrontal.............. 11. septentrionalis, p. 3874. ° 
No postnasal ; anterior loreal forming ; 
a suture with the frontonasal ...... 13. tetragrammus, p. 375. ° 
A postnasal; anterior loreal forming 
a suture with the frontonasal ...... 20. callicephalus, p. 378. 
C. 26 or less scales round the middle of the body. 
1. A postnasal. 
a, Limbs overlapping when pressed against the body. 
a. A single postmental. 
Hind limb more than twice in the length 
from snout to vent; 24 or 26 scales 
round the body...........0...+65 5. marginatus, p. 371. 
