NuMBivR 9 . ■ April 27, 1915. 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ann Arbor, Michigan. Pubushed by the University. 



NOTES ON THE HABITS OF RAN A ARBOLATA 

 BAIRD AND GIRARD. 



By Crystal Thompson. 



So little is known of the habits and distribution of the 

 gopher frog, Rana arcolata, and so few are to be found in 

 museum collections that the Museum of Zoology is fortunate in 

 having received, in 1913, from Professor George R. LaRue, 

 four specimens of this species which he had collected in 

 March, 1910, near Calhoun, Illinois. Professor LaRue re- 

 ported the species as occurring in considerable numbers in the 

 region east of Calhoun and in May, 1913, Helen Thompson 

 Gaige and the writer were sent to that locality to obtain addi- 

 tional specimens and further investigate the habits, abund- 

 ance, and local distribution of the form. Eleven days were 

 spent in the field, from May 14 to May 24, and the studies 

 were made in the locality from which Professor LaRue's speci- 



SciENTiFic Papers of the University of Michigan- No. lo. 



