22D, CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H SER. 
separated from the middorsal line on the body by about the width of two 
scales. A second labial line arises on the seventh labial, runs to the upper 
end of the ear-opening, and extends to the base, or less definitely to the 
middle, of the tail, passing above the hind limb, and being separated from 
the fore limb by not less than the distance between the upper and the second 
lateral lines. This second lateral line is separated from the upper lateral 
line by only the width of one scale. A third lateral line originates near the 
lower part of the ear-opening, passes just above the fore limb, and extends 
to about the middle of the thigh. The tail is bright blue. The lower 
surfaces are grayish white, clearer on the chin, the gular and preanal 
regions, and the limbs. 
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EM thy Ob Hatley eT UA P OA TAGS an CRIN Uo IR Gil S2iii 
Saou Dee WON MESNI Y Py VOM DMB OS Rat Se anata an MURR tia ALUM ARES 
SHoOmtitowro rey Lima ey ye VA SUA Geer a eeu ND LOY F 
DEV ONECe al ATH ADH OSU AMM Se RU Oa nO RAT NEL MEDS ARIE HAN MSN Sahn 
LF Dereranel ae teratb yg PPae OTacoe ACA ee AIDA VP THEA 
Base of fifth to end of fourth toe................. Oeits 
V ariation.—Thirty-three specimens are at hand. A few 
of these have a small group of slightly enlarged scales on the 
back of the thigh, most have none, and none show any such 
enlargement as is always found in E£. elegans. All have one 
postmental. None has a postnasal. The frontal is in contact 
with three supraoculars in all, except that in No. 21645 it 
touches only two on one side of the head. In No. 21663 the 
third left supraocular is divided. The frontal meets the fronto- 
nasal in twenty-four, and is separated in nine specimens. The 
posterior loreal is not much longer than high in twenty-three; 
it touches 2-2 labials in eleven specimens, 2-3 in eleven, and 
3-3 in eleven. The upper temporal is largest. The scales 
around the body are twenty-six in twenty-eight specimens, 
twenty-four in three, and twenty-eight in two. In twenty- 
five specimens examined for the following characters, the 
scales under the fourth toe vary from seventeen to twenty-one, 
being, 17 im) 1) specimen, 48 in 9) 19 in’ 8, 20 in 5, and 2iiny2? 
The scales in a row from parietals to a line joining backs of 
thighs vary from fifty-one to fifty-five:—51 in 4 specimens, 
52 in’ 6,53) im 6; 54m) 7,55 inl)Z.) The supralabialsiare, 7-7) 
in all except No. 21647, which has 6-7. 
The youngest specimens all show the three lateral lines. 
In many of the somewhat larger examples the lower line be-. 
comes faint or disappears. Such specimens have two lateral 
lines, but may readily be distinguished from E. marginatus 
by the position of the lower line. In still larger specimens the 
