Beptilia and BatracMa of Wisconsin. 169 



Having no description, and never having seen this form, I am unable to 

 place it in the Key. Some of our authorities, however, consider it merely 

 a form of clamitans. 



JR. palustris, Le Conte. Marsh or Tiger Frcrg. 



This is quite common in Michigan, and may possibly be found in Wis- 

 consin; L. 2-3 inches; posterior hmb about 4; anterior limb about 14-. 



FAMILY HYLID^. TREE TOADS. 

 Represented by two genera and four species. 



KEY TO THE GENERA OP TREE TOADS. 



a. Toes nearly or quite distinct; fingers quite distinct; disks small; body 



slender; tongue emarginate behind Chorophilus. 



b. Toes webbed; fingers more or less webbed; disks large; body often thick 



set; tongue, if at all. only slightly emarginate behind Hyla. 



Chorophilus, Baird. 



C. triseriaUis, Wied. Little or Striped Tree Frog. 



Color bluish ash or blackish; more or less striped; skin with granula- 

 tions; no warts; toes with trace of web at the base; L. 1 to \\ inches; pos- 

 terior hmb about twice as long as the anterior. 



" C. maculatus, Ag. Spotted Tree Frog. 



Found on Lake Superior." Hoy. 



Hyla, Laurenti. 



H. versicolor, Le Conte. Common Ti-ee Toad. 



"Patches of vomerine teeth sUghtly elevated; tongue slightly notched 

 behind." W. H. Smith. 



Color varying from green to brown with irregular spots; below dirty 

 white to yellow, seldom spotted; common. 

 "IZ". picker ingii, KoVo. Pickering's Tree Toad, abundant." Hoy. 



"Patches of vomerine teeth not elevated; tongue truncate behind;" 

 W. H. Smith. Reddish or yellowish brown; spots dark, rhomroidal; lines 

 dark, and sometimes cuneiform in arrangement. 



FAMILY BUFONID.35. THE TOADS. 



Represented by one genus and one species. 



BuFO, Laurenti. 



B. lentiginosus, Shaw. Var. Americana, Le Conte. Common Toad. 



Body warty and very rough when adult; color cinereous and brownish; 

 speckled; below yellowish or dirty white; tympanum not very apparent; 

 pupils black; very common. 



