344 Illinois State Ldboratofij of Natural Histoyij. 



excised, lower rounded. Palm with numerous rounded tuber- 

 cles. First finger of males greatly swollen at base. Two small 

 plantar tubercles. Basal part of outer toes bound together by 

 the integument. Skin of the throat greatly distended in males 

 and thrown into longitudinal folds when the vocal sac is at rest. 



Color above ash-gray or dull black, marked with spots and 

 longitudinal stripes of brown or black. Below whitish, with a 

 few brown specks on the side, and on the belly, behind the fore 

 limbs. The upper jaw is margined by a dark stripe, which is 

 widest in front and becomes gradually narrower on each side 

 to the angle of the mouth. Above this stripe is another pale 

 one which passes just beneath the eye and extends backward, 

 between the angle of the mouth and the tympanum, to the base 

 of the fore leg of each side. Both these bands are continuous 

 around the snout. Above the pale stripe are dark bands, one 

 for each side, which include the nostrils, rapidly widen to the 

 eyes, and are continued behind them to or beyond the middle 

 of the sides. Two other bands begin behind the eye, extend 

 along the sides of the back, and terminate a short distance 

 above and in front of the femora. A median dorsal band be- 

 gins on the snout, expands abruptly between the eyes, and ter- 

 minates at about two thirds the distance from the snout to the 

 posterior end of the body. At its posterior termination lie two 

 short stripes, one on each side of the middle line, reaching 

 back toward the end of the body. Legs colored like the back 

 above, with dark spots; pale below. 



Length of body about 1.14; length from tip of snout to 

 axilla, 5; femur of hind leg, .H7; tibia of hind leg, .41; tarsus 

 and fourth toe together, .09. 



Occurs throughout the State. Specimens have been ex- 

 amined from Oregon, Piano, Normal, and .lohnson county. 

 Kennicott reports the species from Cook county. 



The above description will api)lj to most normally colored 

 adults; but it is to be remembered in using it that the species 

 is subject to a good deal of variation in markings, with locality, 

 age, arul sex. The males are. as a rule, darker colored than 

 feVnales and young, and the latter may lack the dorsal stripes 

 altogether, and may be speckled with brown. The median 

 dorsal stripe generally expands between the eyes, but some- 



