324 American Amphibia. 
teriorly ; the anterior legs including the toes # in.; toes 5, free ; 
order of length 3 and 4 equal, 2-5-1; Ist, about half the length 
of 2d, which is one third shorter than 3d and 4th; nails all much 
compressed, deep, much curved at point and very acute ; posterior 
extremities 1,1, in.; toes five, much longer than the anterior — 
ones ; order of length 4—3—5-2-1 a regular gradation from ¢ to {5 
of an inch, the fifth opposable to the others ; nails as on the anteri- 
ors. Head covered with plates; scales all round, imbricate and 
wider than long; two rows of larger ones sub-quadrangular on 
the sides of the lower jaw and beneath it, a large triangular one 
beneath its extremity ; scales of the tail larger and wider in pro- 
portion to their length than those of the body ; the central infe- 
rior row much larger than the others ; toward the end of the tail 
the scales become sub-verticillate, the tip sub-acute ; 28 rows of 
scales surround the trunk; the scales beneath the toes sub-ser- 
rate, beneath the feet tuberculate ; anus a transverse slit; color 
above olive brown; head immaculate ; a narrow line of dark 
brown through the first lateral row of scales; another through 
the third, extending from the head to the tail, then approximating 
and passing on the first and second rows, one third the length of 
the tail ; on the neck an oblique line, between them; a broader 
stripe of the same color separates the back and sides, includes a 
row, and half the two adjoining rows of scales, and extends from 
the eye to the middle of the tail becoming narrower on the tail ; 
another somewhat obscure line of the same color, extends from 
the lower angle of the tympanum to the tail where it is lost; legs 
above of the color of the back with three irregular dark longi- 
tudinal stripes, the central one wider; sides and trunk beneath 
with a tinge of yellow on the latter; tail and legs beneath pale 
lead color. 
The species sometimes attains a size from 4 to } larger than 
the specimen from which this description was drawn. It proba- 
bly belongs to the genus Siliqua of Gray. Frequents houses. 
. 
Found, though rarely, in Detroit. 
This drawing represents the upper surface of the cas 
head. 
