Beptiles and Amphibians of Illinois. 341 



Small. Upper surface of body and limbs with small scat- 

 tered elongate or rounded warts of irregular size. Posterior 

 part of skin of belly and the inferior posterior part of that 

 covering the posterior femora distinctly granulate. Two large 

 granules beneath the vent. Throat, chest, and the greater 

 part of the limbs, smooth. A distinct fold of the skin across 

 the chest between the fore legs. Tongue broad, slightly ex- 

 cised behind, and free for about one fourth of its length be- 

 hind. Nostrils situated in slight eminences. Eyes prominent. 

 A single large palmar callosity. The first finger of the male 

 but slightly swollen. Two small conical plantar tubercles. 



Color above, some shade of gray, brown, or olive-green, of- 

 ten with a median longitudinal diffuse band of red or green, 

 and with several black spots, of which a triangular one between 

 the eyes is constant and characteristic. Beneath pale. Upper 

 jaw black or dark brown, with four vertical pale lines on each 

 side. A narrow pale line extends from the lower posterior part 

 of the eye to the base of the fore leg. Above this line lies an 

 elongate black spot which extends from the eye towards, but 

 does not quite reach, the fore leg. Behind the insertion of 

 the fore leg, on the side, is a large oblique black spot margined 

 with white. Another similar but smaller spot lies in advance 

 of, and above, the insertion of the hind leg. The triangular 

 spot between the eyes is narrowly margined with white, its 

 apex pointing backward. The middle of the back is often occu- 

 pied by a longitudinal red or green band, and immediately on 

 each side of the latter are several obscure black spots. Color 

 beneath pale, sometimes tinged with yellow on the throat. 

 Throat more or less speckled with dusky or brown. Lower jaw 

 pale, or with a few dark specks at the symphysis, becoming 

 darker towards the angle of the mouth, from which point a 

 dark dash passes to and upon the base of the fore leg. Legs 

 and digits dark above, with round dark spots; pale and un- 

 marked below. A black spot may often be visible over the 

 vent, and generally a dark bar passes from this region along 

 the posterior surface of the thigh. 



Length of body, .87-1.25; from tip of snout to axilla, 

 .28-.r)0; femur, 44-62; tibia, .r)2-.69; tarsus and fourth toe to- 

 gether, .6y-.94 inch. 



