XII. 



Yellow Ground-squirrel, Yellow Gopher, Flickertail, 



Richardson Ground-squirrel, Citellus 



or Spermophile. 



Citellus richardsoni (Sabine). 



(L. Citellus, see ante; richardsoni, in honour of Sir John Richardson, who discovered 

 the species at Carlton House in 1820.) 



Arctomys richardsonii Sabine, 1822, Trans. Linn. Soc, XIII, 



p. 589. 

 Citellus richardsoni Elliot, 1 905, Check List Mam. N. A. 



Field Mus. Pub., 105, Zool. Sen, Vol. VI, p. iii. 

 Type Locality. — Carlton House, Sask. 



French Canadian, la Citelle ou VEcureuil de Rich- 

 ardson. 

 Cree and Ojib. Me-sed'-jee-dah-mo' (big squirrel). 

 Ogallala Sioux, Tash-nah-hay-ho'-tah. 



In addition to the generic characters set forth under the 

 previous species the Yellow Ground-squirrel has the following: 



SIZE Length, about 12 inches (305 mm.); tail, 3I inches (89 



mm.); hind-foot, i| inches (44 mm.). 



wEFGHT The weight of a large male I found to be 13 ounces, the 



female is smaller and not so heavy. 



COLOUR A Carberry specimen, a male taken August 4, doubtless 



typical, is in general of a warm yellowish buff, deepening along 

 the cheeks, shoulders, flanks, and thighs to a strong yellow. 

 On the crown and back it is thickly peppered with brownish 

 black, giving the efl^ect of a gray mantle. On the rump these 

 markings faintly suggest cross pencilling. The tail above is 



3S0 



