2 University of Michigan 



List of Species 



Ambystoma tigrinum (Green). — Eastern Clay County, July 

 15, 1918; Sioux City, Woodbury County, T. C. Stephens. 



Acris gryllns (LeConte). — Sioux City, Woodbury County, 

 T. C. Stephens. 



Pseudacris triseriata (Wied). — Gillett Grove, Clay County, 

 July 29, 1918. 



Hyla versicolor LeConte. — Center Lake region, Dickinson 

 County, July 22, 1918; Lake Okoboji, Dickinson County, July, 

 1914, T. C. Stephens. 



Rana pipiens Schreber. — Center Lake region, Dickinson 

 County, July 22, 1918; Sioux City, Woodbury County, T. C. 

 Stephens. 



Plestiodon septentrionalis Baird. — Lake Okoboji, Dickinson 

 County, July, 1914, T. C. Stephens. 



Diadophis arnyi Kennicott. — Plymouth County,. September, 

 1914, T. C. Stephens. 



Heterodon nasicns Baird and Girard. — Blue Lake, Monona 

 County, September, 19 13, R. R. Vernon. 



Coluber constrictor Haznventris (Say). — Sioux City, Wood- 

 bury County, May 10, 1903. 



Elaphc viilpina (Baird and Girard). — Iowa Falls, Hardin 

 County, August, 1913, W. J. Himmell ; Sioux City, Woodbury 

 County, June 4, 19 13, T. C. Stephens. 



Pituophis sayi (Schlegel). — Several specimens from Wood- 

 bury County collected by T. C. Stephens and the writer; On- 

 awa, Monona County, September, 1913, R. R. Vernon; Ida 

 County, May, 1913, W. J. Himmell. 



