AMPHIBIANS. 43 



liibernates in hollows of trees or in the moss at their roots. This 

 species has the power of chanoin^- its color, altb()n«»h the change 

 is not rapid. There is a range of coUn-a from vei-y liglit yellow and 

 green to dai-k brown and green. The color, nnder ordinary circum- 

 stances, corresponds with that of the object on wliich the frog is 

 resting. The eggs are laid in 3Iay. in small gron])S or singly. They 

 are attached to water plants or grass stems and hatch in abont 

 forty-eight hours. After hatching, the development is rapid, the 

 final metamorphosis taking place in about seven weeks. 



Distrihutlon: Canada, south to Texas and Kansas. ( Dickerson, 



190G.) 



Michigan : Specimens in the University Museum from Dickinson, 

 Cheboygan, Oceana, Huron, Livingston, Oakland. Washtenaw, 

 Wayne and Cass Counties. Reported from Eaton County (Clark, 

 1902) ; Washtenaw and Wayne (\)mities (Cope, 1889) ; Eaton, Mont- 

 calm, Kent, Ottawa, Barry and Van Buren Counties! (Jibbs, Note- 

 stein and Clark, 1905) ; Oakland County (Hankinson, 1908) ; Mar- 

 quette County (Ruthven, 19(IG) ; Huron County ( Ruthven, 1911a) ; 

 Cass County (Thompson, 1911). 



HYL.A PICKEKINGII Holbrook. 



SPRING PEEPER. 

 (PI. Illb.) 



Description: Body short and stout. Muzzle i)ointed, upper jaw 

 extending beyond lower. Ears small. Feet moderately webbed, 

 disks relatively large. Under surface granulated. A fold of skin 

 across the chest. Yomero-palatine teeth in two patches behind in- 

 ternal nares. Tongue large, slightly notched, and free behind. 



Ground color varies from light to dark brown. .V dark V between 

 the eyes and a large oblicjue dark cross on the back. Limbs in- 

 definitelv barred with darker. A dark band from the snout through 

 the eye to the side. Under surface pale yellow, granulated, darker 

 posteriorly. Usually darker blotches on throat and chest. 



Mcasurciitcnts: ^peciiucii \o. 31006. 



Length of head and bodv 021 



] Anigth of hind limb to heel 0155 



Width of head 00G5 



Hahits and Hahitkft: The spring peeper is tlie smallest of the 

 Hylidae. During the summer it may be found among fallen leaves 



