MICHIGAN ACADEMY OF SCIENCE. 
189 
NOTES 
ON THE WISCONSIN WOOD FROG . 1 
BY HELEN B. THOMPSON. 
The Wisconsin wood frog's have been reported as liana temporaria 
L. var. sylvatica LeConte, Smith 2 3 and Higley , 8 and liana sylvatica I at- 
Conte, Hav 4 5 6 and Cope."’ Miss. Dickerson 0 states that Rana cantabrigensis 
has been reported from Wisconsin, but the writer has been unable to 
verify this. 
In examining - a series of wood frogs from Wauwatosa, Wis., belonging 
to the Public Museum of Milwaukee , 7 and labeled R. sylvatica, the 
writer has found that they are to be referred to the species cantabrig- 
ensis, the length of the hind limb to the heel either equalling or only 
slightly exceeding the total length of the head and body. In the 
typical R. sylvatica the legs are much longer, the length to the heel 
being considerably greater than the entire length of the head and 
body. There are also three wood frogs from Racine, Wisconsin, in the 
University of Michigan Museum that are to be referred to the same 
species. This would indicate that the Wisconsin wood frog is the 
northern rather than the eastern form. 
1 From the University of Michigan Museum of Natural History. 
2 Geol. Surv. Ohio, IV, Part I, 1882, p. 710. 
3 Trans. Wis. Acad. Sci., II, 1889, p. 168. 
4 Geol. Surv. Wis., I, 1883, p. 425. 
5 Bull. U. S. Nat. Mus., No. 34, 1889, p. 450. 
6 The Prog Book, 1906, p. 212. 
7 I am indebted to Mr. Henry L. Ward, director of the museum, for the opportunity of studying this 
material. 
