NORTH AMERICAN BATRACHIA AND REPTILIA. 
47 
and below wliicli are lines of anthracite black; the upper yellow 
line on the center of a single row of scales; the lower on parts 
of two rows; tail dark blue above ; below yellowish-white. 
Pennsylvania to Texas, in mountains. 
86. E. obsoletus , (B. and G.) Western Skink. Parieto- 
occipital and vertical the largest cephalic plates; color above 
greenish- white; the scales narrowly margined with black ; beneath 
uniform. Sonoran region, borders of Central and Austroriparian, 
Illinois (F orbes) . 
87. E fasoiatus , (Linn.) Cope. Common Skink. Post- 
nasals one or two, separating internasals and postfrontals ; super- 
ciliaries live ; superior labials eight; dorsal scales equal; color 
above bluish-black, or olive-brown, with live yellow lines, the 
median one forming two on the head; the superior lateral ones 
bordering the superciliaries ; inferior lateral extending forward 
on superior labials; the median and superior lateral line on parts 
of two rows of scales ; the inferior lateral on one and one-half or 
two rows before and just behind arms, but covering a single row 
on sides; the lines are two rows apart, and frequently partially 
or wholly absent. Head sometimes reddish. Below yellowish- 
white. Central, Austroriparian, and Eastern regions. 
Family TEILEE. 
Genus Cnemioophorus, Wieg. 
Body slender; above covered with small, granular scales; 
below large ones ; tail long, ringed with large, carinated scales ; 
head long, narrow, pyramidal, covered with large regular shields ; 
ear large; tongue long and slender, bifid at end; generally two 
gular folds; outer part of arms and legs covered with large shields. 
88. C. sevlineatus, (L.) D. and B. Six-lined Lizard. Inter- 
nasal none; superciliaries three, two large; color on head and 
along back dusky brown; on each side three yellow longitudinal 
lines, the upper one short, and somewhat indistinct; between 
these longitudinal lines jet black ; throat silvery-white ; abdomen 
bluish- white. Sonoran, Austroriparian regions to S. E. Virginia; 
Illinois and Wisconsin. 
Family ANGUIDHL 
Genus Opheosattrus, Daud. 
Tongue arrow-headed in shape, with a triangular notch in 
front; anterior free part with granular papillae ; teeth in several 
