AMPHIBIANS. 45 



plants. Thev are very small, "so small that tliov look like tinv 

 plant seeds-' (Diokerson, 1000, p. 145). The time of development 

 varies from six to twelve days according to the tempei-atnre, and 

 metamorphosis takes place in about two months after hatching, the 

 little tadpoles nsnally leaving the Avater before the transformation 

 is completed. 



Distribution: Eastern North America, Canada to South Caro- 

 lina. (Dickerson, 190G.) 



Michigan : Specimens in the University Museum from Keweenaw 

 (Isle Royale), Ontonagon, Dickinson, Houghton, Baraga, Huron, 

 Washtenaw, Cass and St. Joseph Counties. Re})orted from Eaton 

 County (Clark, 1902) ; Wayne and Washtenaw Counties (Cope, 

 1889) ; Van Buren, Eaton, Kalamazoo, xVntrim and Montcalm Coun- 

 ties (Gibbs, Xotestein and Clark, 1905) ; Ontonagon County (Rut li- 

 ven, 1904a) ; Ontonagon, Baraga, and Houghton Counties (Ruth 

 ven, 1906) ; Keweenaw County (Isle Royale) (Ruthven, 1909) ; 

 Huron County (Ruthven, 1911a); Cass County (Thompson. 1011 j. 



ACRIS GRYLLUS Le Conte. 



CRICKET FROG. 



Description: Form frog like. Muzzle ver^- long and pointed. 

 Disks on fingers and toes small, scarcely noticeable. Toes webbed 

 almost to tips. Sole tubercles moderate in size. Skin above with 

 numerous conspicuous smooth warts. Under surface slightly granu- 

 lated posteriorly. A fold of skin across the chest. Vomerine teeth 

 in two patches between internal nares. Tongue attached in front 

 and along mid-line. 



Ground color variable, usually brown or green with a dark tri- 

 angular mark between the eyes. Three oblique blotches on the 

 sides. Limbs barred or spotted with dark. A light line from eye 

 to arm. Upper \i\) light spotted with darker. Concealed surface 

 of femur with a longitudinal dark stripe. Under surface yellowish 

 white, throat mottled with darker. Coloration of male may be so 

 dark that markings do not show. 



Jlctiisiircinents: Spceinicii A'o. SO'il'3. 



I^ength of head and body 024 



Length of hind limb to heel 025 



Width of head 0085 



Habits and Habitat: The cricket frog is a tree fi-og that is en- 



