LIST OF SPECIES. XXXVII 



Page. 



71. Ursus americanus, Pallas. Black Bear. United States generally 225 



71 a. TJrsus americanus var. cinnamoneus, Aud. & Bach. Rocky Mountains and 



Oregon 228 



72. TJrsus maritimus, Linn. White or Polar Bear. Shores and Islands of Arctic 



Regions 229 



21. DIDELPHYS, Linn. 232 



73, Didelphys virginiana, Shaw. Possum. From Hudson River to the southern part 

 of the eastern United States, and west to the Missouri. Not in south 

 ern Texas 232 



74. Didelphys californica, Bennet. Texas Possum. Rio Grande of Texas to the City 



of Mexico, and west to Lower California 233 



22. SCIURUS, Linnseus. 243 



75. Sciurus vulpinus, Gmelin. Southern Fox Squirrel. North Carolina to Florida, 



and along the Gulf States to eastern Texas 246 



76. Sciurus cinereus, Linn. Cat Squirrel ; Pennsylvania Fox Squirrel. New Jersey 



to Virginia, and west to the Alleghenies 248 



77. Sciurus ludovicianus, Custis. Western Fox Squirrel. Mississippi valley 251 



78. Sciurus limitis, Baird, (n. s.) Pecos Fox Squirrel. Pecos River, Texas 256 



79. Sciurus carolinensis, Gm. Gray Squirrel ; Black Squirrel. (Black var.) Eastern 



United States to the Missouri River 256 



79 . Sciurus carolinensis, var. mexicanus? Mexican Gray Squirrel. Northern 



Mexico 263 



80. Sciurus fossor, Peale. California Gray Squirrel. Pacific Coast from San Diego, 



California, to the Columbia River, at Fort Dalles 264 



81. Sciurus castanonotus Baird, (n. s.) Chestnut Backed Squirrel. Southern Rocky 



Mountains. (Fort Webster) 266 



82. Sciurus aberti, Woodhouse. Tuft-Eared Squirrel. San Francisco Mountains, New 



Mexico 267 



83. Sciurus hudsonius, Pallas. Red Squirrel ; Chickaree. Labrador (Lat. 56) to 

 Mississippi ; and in the United States from the Atlantic to the Missouri 

 River 260 



84. Sciurus fremontii, Towns. Mountain Gray Squirrel 272 



85. Sciurus richardsonii, Bach. Richardson's Squirrel. From the Main Rocky Moun 

 tains to the Cascade Range 273 



