Identifier: pocketgophersofu05bail (find matches)
Title: The pocket gophers of the United States
Year: 1895 (1890s)
Authors: Bailey, Vernon, 1864-1942. cn
Subjects: Pocket gophers
Publisher: Washington, D.C. : U.S. Dept. of Agriculture, Division of Ornithology and Mammalogy
Contributing Library: U.S. Department of Agriculture, National Agricultural Library
Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
direction the group covers the conti-nent from ocean to ocean, except that it is absent from the region northof the Savannah Eiver and east of the Mississippi Valley. The family * Abridged from ;i monographic revision of the Geomyida;, N. Am. Fauna, No. 8,1895. GEOGRAPHIC DISTRIBUTION. 29 is clearly of Sonoran origin and reaches its highest development on thesouthern part of the table-land of Mexico. The great majority of thespecies inhabit the upper and lower Sonoran zones, though a few spe-cially modified forms range upward on favorable mountain sides throughthe Transition and even into the lower edge of the Boreal zone. Onthe other hand, two species inhabit the Tropical belt of Mexico. The genus Thomomys has by far the most extended range of any ofthe three, inhabiting suitable localities from the Valley of Mexico andMount Orizaba northward to British Columbia and the North Sas-katchewan, and from the Pacific Coast eastward to the Great Plains.It is represented by numerous species.
Text Appearing After Image:
Fiu. 6.—Geographic distribution of Pocket Gophers by genera. The genus Gratogeomys inhabits the Great Plains of the United Statesfrom the Arkansas River in eastern Colorado southward, and extendsfar into Mexico (see fig. G and map 1, H). The genus Geomys inhabits a broad belt across the middle part ofthe United States from the Eed River Valley in northwestern Minne-sota and northeastern North Dakota southward to the Mexican bound-ary along the Rio Grande; and also the southern half of Alabamaand Georgia and the northern half of Florida, It does not occur westof eastern Wyoming, east central Colorado, and the Rio Grande Valleyin New Mexico (see fig. 6 and map 1). THE SPECIES OF GEOMYS. The Georgia Gopher (Geomys tuza), a rather large cinnamon-brownspecies, inhabits the pine barrens of eastern Georgia, where it is 30 POCKET GOPHERS OF THE UNITED STATES. locally known as the c Salamander. The same name is applied to thefollowing subspecies: The Florida Gopher (Geomys tuza floridanus) i

Note About Images