ANNOTATED LIST OF SPECIFIC AND SUBSPECIFIC NAMES (Applied to the genus _Zapus_ since 1899) Edward A. Preble's (1899) early revisionary account of the genus _Zapus_ provides an annotated list of the names which had been proposed for American jumping mice to that date. The present account supplies in chronological order the names proposed (including the new kinds described by Preble) in the 54 years since Preble's revision. Detailed synonymies are given for each kind under the accounts of the subspecies. 1899 _campestris_ (_Zapus hudsonius_) Preble, N. Amer. Fauna, 15:20, August 8, 1899, applies to the jumping mouse of southeastern Montana, and the Black Hills region of Wyoming and South Dakota. 1899 _minor_ (_Zapus princeps_) Preble, N. Amer. Fauna, 15:23, August 8, 1899, originally applied to the jumping mouse of the prairies of Saskatchewan, but now includes populations of this species from the plains of Canada (southern Manitoba to Canadian Rockies) and northern United States (Montana, North and South Dakota). 1899 _oregonus_ (_Zapus princeps_) Preble, N. Amer. Fauna, 15:24, August 8, 1899, originally applied to the jumping mouse of eastern Oregon, but now applies also to populations from southeastern Idaho, eastern and central Nevada, and extreme northeastern California. 1899 _major_ (_Zapus_) Preble [= _Zapus princeps oregonus_], N. Amer. Fauna, 15:25, August 8, 1899, arranged as a subspecies of _Zapus princeps_ by Hall, Univ. California Publ. Zool., 37:10, April 10, 1931; here considered a synonym of _Zapus princeps oregonus_. 1899 _nevadensis_ (_Zapus_) Preble [= _Zapus princeps oregonus_], N. Amer. Fauna, 15:25, August 8, 1899, arranged as a subspecies of _Zapus princeps_ by Hall, Univ. California Publ. Zool., 37:10, April 10, 1931; here considered a synonym of _Zapus princeps oregonus_. 1899 _orarius_ (_Zapus_) Preble [= _Zapus trinotatus orarius_], N. Amer. Fauna, 15:29, August 8, 1899, applies to the animals from southwestern Marin County, California. 1911 _luteus_ (_Zapus_) Miller [= _Zapus princeps luteus_], Proc. Biol. Soc. Washington, 24:253, December 23, 1911, applies to the jumping mouse in north-central and southern New Mexico and eastern Arizona. 1913 _australis_ (_Zapus luteus_) Bailey [= _Zapus princeps luteus_], Proc. Biol. Soc. Washington, 26:129, May 21, 1913, was applied to the jumping mouse of southern New Mexico, but is here regarded as a synonym of _luteus_. 1920 _eureka_ (_Zapus trinotatus_) Howell, Univ. California Publ. Zool., 21:229, May 20, 1920, applies to the jumping mouse of the humid coastal district of northern California.