300 BULJLETIN 128, UNITED STATES NATIONAL MUSEUM. 



*Castor subauratus subauratus Taylor. 



1912. Castor subauratus Taylor, Univ. California Publ. Zool.^ 



vol. 10, p. 167. May 21, 1912. 

 Type Locality. — Grayson, San Joaquin River, Stanislaus 

 County, California. 



Castor subauratus shastensis Taylor. 



1916. Castor subauratus shastensis Taylor, Univ. Calif. PubL 



Zool., vol. 12, p. 433. March 20, 1916. 

 Type Locality. — Cassel, Pitt River, Shasta County, California. 



Superfamily MUROID^. 



Family CRICETIDiE. 



Subfamily CRiCETiN-ffi. 



Genus ONYCHOMYS Baird.^" (Grasshopper-mice.) 



1857. Onychomys Baird, Mamm. N. Amer., p. 458. Type, 

 Hyyudxus leucogaster Wied. 



*Onychomys leucogaster leucogaster (Wied). 



1841. Eypudseus leucogaster Wied, Reise in das innere Nord- 

 America, vol. 2, p. 99. 



1857. Onychomys leucogaster Baird, Mamm. N. Amer., p. 459. 



1885. Hesperomys leucogaster True, Proc. U. S. Nat. Mus., vol. 7 

 (1884), p. 597. 1885. 



1885. Onychomys leucogaster var. pallidus Herrick, Geol. and 

 Nat. Hist. Surv. Minnesota, 13th Ann. Rep. (1884), p. 183. 

 (Lake Traverse, near sources of the Minnesota and Bois des 

 Sioux Rivers, South Dakota.) 



1889. 0[nychomys] leucogaster Merriam, North Amer. Fauna, 

 No. 2, p. 1. October 30, 1889. 



Type Locality. — Fort Clark, near present town of Stanton, 

 Mercer County, North Dakota. 



Range. — Southern Manitoba, eastern North Dakota, north- 

 eastern South Dakota, and parts of extreme western Minnesota, 

 west to Minot and Fort Clark, North Dakota. Transition zone. 



*Onychomys leucogaster missouriensis (Audubon and Bachman). 

 1851. Mus missouriensis Audubon and Bachman, North Amer. 



Quadr., vol. 2, p. 327. 

 1914. Onychomys leucogaster missouriensis Hollister, Proc. U. 

 S. Nat. Mus.," vol. 47, p. 438. October 29, 1914. 



«> Revised by Hollister, Troc. V. S. Nat. Mus., vol. 47, rP- -127-489. Oct. 29, 1914. 



