SPERMOPHILUS. 89 



C.—douglasi. {Aritomys), Richardson. Faun. Bor. Amer., 1^29, i, 

 p. 172. 



Type locality. Plains of the Columbia River, Oregon. 



Geogr. Distr. Northern California, Oregon, (Fort Klamath). 



Genl. Char. Size intermediate : shoulder patches black. 



Color. Similar to 5. beecheyi. except that the patch on neck and 

 shoulders is black instead of brown. Tail hoary above and beneath, 

 and three dark bands visible. 



Affasiirements . Total length, 450; tail vertebra', 210: hind foot, 66. 



d.—buckleyi. {Spermophilus), Slack. Proc. .\cad. Nat. Scien. Phil., 

 1S61, p. 314. 



Txpe locality. Pack-saddle Mountain, Llano County, Texas. 



Geogr. Distr. Central Texas. 



Genl. Char. Size large : head and shoulders black : ears small ; 

 soles naked. 



Color. Head, neck and shoulders above black : the extent of 

 this color varies greatly among individuals ; rest of pelage grizzled 

 white and black. Throat, sides of neck and belly dark ochre : mid- 

 dle of bellv gravish white. Tail grizzled brown and black with irregu- 

 lar, ill defined, black bands. 



.Measurements. Total length. 513-. tail vertebra% 192; hind foot. 55. 



D. Oolobotis. 

 Skull abruptly narrowed between orbits: zygomata heavy, spread- 

 ing, flattened transversely ; first premolar large ; tail short, narrow ; 

 ears small, almost hidden by fur. 



109. empetra. (Mns), Pall. Nov. Spec. Glir., 177S, p. 74, (Part). 



.anaJeiisis, Erxleb. Syst. Anim., 1777, p. 363, (Part). 



parryi, Richard. App. Parrys Sec. Voy. , 1S25, p. 316. 



kennicotii, Ross. Canad. Nat. ct Geol., 1861, p. 434. 



phceognathus, Richard. Faun. Bor. .Am., 1S29, p. 161. 



Txpe locality. Mackenzie River. 



Geogr. Distr. Arctic America from Melville Peninsula to Icy 

 Cape, Bering Sea : southwest along the Yukon River for a considera- 

 ble distance, and in the east to the verge of the Barren Grounds, 

 Lat. 65 . 



Genl. Char. Body stout and thick ; tail short and bushy : ears 

 low, broad. 



Color. Above mixed white, black and yellowish brown, with 

 numerous blotches formed by the white : rest of pelage brownish yel- 

 low, except top of head, which is cinnamon mixed with black. Orbi- 



