GROUND SQUIRREL 



vertebras 1.5 inches; hmd foot, 1.2 inches. Found from 

 Malheur County, Oregon, south into northeastern Nevada 

 Carson Valley Ground Squirrel.— a/e/Zz^^ mollis washoensis 

 Mernam. 

 "Size large; coloration grizzled gray throughout, resembling 

 canus. bkull large, long, and massive. ..." (Merriam) 

 Total length, 10.3 inches; tail vertebras, 2 inches; hind foot 

 1.4 mches. Found m Douglas County, Nevada; limits of 

 range unknown. 

 Stephens Ground SquirreL—Citellus mollis stephensi 

 (Merriam). ^ 



Resembling typical mollis, "but in summer pelage head 

 and neck to shoulders uniform pinkish buff " (Mer- 



nam) Total length, 8.2 inches; tail vertebr£e, 2 inches- 

 hmd foot 1.3 inches. Found in Owens Valley, Esmeralda 

 County, Nevada; limits of range unknown. 

 Yakima Ground SquiTTeL—Citellus mollis yakimefisis 

 (Mernam). 

 Resembling typical mollis "in size and general appearance 

 but tail slightly shorter; color grayer and less buffy but 

 not so gray as canus. Nasal bones very much longer 'than 

 in either molks or canus." (Merriam) Total length 8 s 

 inches; tail vertebras, 1.8 inches; hind foot, 1.4 inches 

 l^ound m Yakima County, Washington; limits of range un- 

 known. 

 Payette Ground Squirrel.— a/eZ/w^ idahoensis Meniam 



Largest of the mollis group. Similar in general to mollis 

 but larger, with much stronger tendency to dappling espe- 

 cially m young; tail longer, broader, and darker- eyelids 

 white; antenor rim of ear usually white. Skull large and 

 massive. . _. . '\ (Merriam). Color varying from pale 

 hoary grayish faintly suffused with buffy and more or less 

 dappled on rump, to strongly suffused with pale buffy and 

 distinctly dappled on back. Total length, 10.2 inches- 

 tail vertebrae, 2.5 inches; hind foot, 1.4 inches. Found 

 along Payette River and northern side of Snake River 

 -Payette County, and southwestern Idaho. * 



Dwyhee Ground Squirrel.— C//^////^ leurodmi Merriam 



Size rather large, about equaling idahoensis from the oppo- 

 site side of Snake River, but with shorter tail. Color gray 

 not dappled except in the young. Teeth very large equal- 

 ing maximum of idahoensis. ..." (Merriam) ' Total 

 length, 9.5 inches; tail vertebras, 1.9 inches; hind foot i 3 

 inches. Found m extreme southwestern Idaho, Owyhee 

 County; limits of range unknown. 



Spilosoma Group 



;i Paso Spotted Ground Squirrel; Spotted Sand Squirrel.— 



Litellus spilosoma arens (Bailey). 

 A small, spotted Squirrel with short tail, about half as long 

 207 



