lined with white; under parts white; tail white. Outer sides of legs 

 and feet tawny gray; ears black, grayish at base bordered posteriorly 

 with white. Whiskers equallj' white and black. 



Afeasurtinents. Total length, 626; tail vertebrae, 63; hind foot, 

 160; ear from crown, 85. 



413. labradorius. (Lepus)^ Miller, Proc. Biol. Soc. Wash., 1899, 



p. 39- 



Type locality. Fort Chimo, Ungava, Labrador. 



Geogr. Distr. Ungava, Labrador; limits of range not known. 



Genl. Char. Similar to Z.<i. /^i/^js.o/ from Newfoundland, hind foot 

 shorter, ears longer. Audital bullae more inflated, rising above the 

 surface of the basioccipital and of the highest point of the occipital 

 condyle. 



Color. Summer Pelage. Above hair brown tinged with bluish 

 gray and frosted with whitish; head pale hair brown, darkest on 

 crown and forehead. Ears black at tip; grizzled black and hair 

 brown anteriorly, whitish behind. Rump and sides gray; beneath 

 white. Fuet white tinged with brown; soles umber brown. Tail 

 white. 



Measurements. Hind foot, 142; ear from crown, 105; to end of 

 hairs, no. 



414. green land icus. [Lepus), Rhoads, Amer. Nat., 1896, p. 254. 

 Type locality. Robinson Bay, North Greenland. 



Geogr. Distr. Greenland; possibly Iceland and Spitzbergen. 



Genl. Char. Size large; incisors very long and slender; "face of 

 upper incisors multistriate, the normal sulcus so filled with dentine 

 in adults as to obliterate the depression." 



Color. Summer Pelage. White suffused with light tawny and 

 sprinkled with gray on top of head and ears. Scattering black and 

 gray hairs on back. Sides, under parts and tail white. 



Measurements. Total length, skeleton from nasals to last caudal 

 vertebrae, 519; hind foot, 145; tail vertebrae, 50; ear from crown, 100. 

 (Dry skin. ) 



415. tschukschorum. {f.cpus), Nordquist, Vega Exped., 11, 1883, 



p. 84, figs. 8, 9, 10. 



Type locality. Pitlekaj, lat. 67° N., long. 173" W., northeast 

 Siberia. 



Geogr. Distr. Northwest Alaska, from mouth of Kuskoquim 

 River to Arctic Ocean; Siberia. 



Genl. Char. Similar to L. timidus, but larger head; ears shorter, 

 black on tips much less. Nasals smaller and narrower, postorbital 



