LIST OF SPECIES, XXXIX 
101. Spermophilus franklini, Rich.—Gray Gopher.—Northern Illinois and Wisconsin, 
and to Minnesota and the Saskatchewan............csssscssesscescnsescaescece 
102.—Spermophilus tereticauda, Baird, (n. s.)—Round-Tailed Spermophile.—Fort 
103,—Spermophilus tridecem-lineatus, Aud. & Bach.—Striped Gopher: Prairie Squir- 
rel.—Kastern Michigan to the plains of the Missouri, and south to 
Bed) River, Arkansas, aud Wort Thorn, N.. Mi. ...c..c-ccce0cceeclocci-oees 
104.—Spermophilus mexicanus, Wagner.—Mexican Ground Squirrel.—Rio Grande of 
Texas and the Pecos, and south into Mexico..........cesecesecessceescceeseee 
105.—Spermophilus spilosoma, Bennett.—Sonora Ground Squirrel.—Fort Staunton, N. 
M. and El Paso, to Chihuahua, and west to the Gulf of California... 
106.—Spermophilus parryi, Rich.—Parry’s Marmot.—Shores and islands of Arctic seas; 
island of Arikamtchitchi, on the Asiatic side of Behring’s Straits...... 
107.—Spermophilus richardsonii.— Yellow Gopher.—Sault St. Marie, Mich., and west 
to the Rocky Mountains north of Upper Missouri...............eceeeeeeeees 
108.—Spermophilus townsendii, Bach.—Townsend’s Spermophile.—Rocky Mountains 
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26. CYNOMYS, Raf. 
109.—Cynomys ludovicianus.—Prairie Dog.—Milk river and Upper Missouri; west 
towards the Rocky Mountains ; south to Red River ; southwest to the 
Upper Rio Grande, and a short distance into Sonora ?............ceeeeeeee 
110.—Cynomys gunnisonii, Baird (n. s.)—Short-Tailed Prairie Dog.—Coochetope 
Pass to Lodge Pole Creek, in or near the Rocky Mountains............ a 
27. ARCTOMYS, Schreber. 
111.—Arctomys monax, Gmelin.—Woodchuck ; Ground Hog.—Massachusetts to Wis- 
consin and Canada; south to Virginia. (To South Carolina, Aud. 
OES Ute Vere venta SS sede te vals sha Soh ce vin aeleaanne Ss RHS cui, ddbend ShGeCdevets 
112.—Arctomys flaviventer, Bachman.—Yellow-Footed Marmot.—Black Hills, Neb.... 
28. APLODONTIA, Rich. 
113.—Aplodontia leporina, Rich.—Sewellel ; Showt’l.—Puget’s Sound...........s000000008 
29. CASTOR, Linn. 
114,—Castor canadensis, Kuhl.—American Beaver.—Throughout the entire area of 
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Tage. 
