KEY TO LAND MAMMALS OF NORTHEASTERN NORTH AMERICA I29 



the peninsula of Nova Scotia. The relationships of this race, the typical 

 form and the large form occurring in the Hudsonian zone of Ontario 

 and Quebec are not well understood. 



Vulpes deletrix Bangs Newfoundland red fox 



1898 Vulpes deletrix Bangs, Proc. biolog. soc. Wasliingtou. 24 Mar. 1898. 

 12 ; 36. (Bay St George, Newfoundland) 

 Like Vulpes fulvus, but hind foot proportionally very large ; claws long 

 and stout; color in red phase pale ocher yellow; black and silver gray phases 

 very common. Total length, 960 (37f ); tail vertebrae, 336 (13); hind foot, 160 (6i). 

 (d e 1 6 1 r i X Lat., a destroyer) 



The Newfoundland fox is confined to the island of Newfoundland. 



Genus Urocyon Baird 



1857 Urocyon, Baird, Mamm. N. Am. p. 121. Type Canis Virgini- 

 an us Erxleben=C. cinereoargenteus Miiller. 

 Teeth 42, upper front teeth not lobed; pupil of eye elliptic; tail with a con- 

 cealed mane of stiff hairs and no soft under fur. (Urocyon; Gk., tail dog) 



PecuHar to the new world. Ranges from South America north to the 

 lower edge of the transition zone in the eastern United States. Several 

 species are known, two of which occur in North America. Only one of 

 these is found within our limits. 



Urocyon cinereoargenteus (Miiller) Gray fox 



1776 Canis cinereoargenteus Miiller, Natursyst. Suppl. p. 29. (East- 

 ern United States) 

 1894 Urocyon cinereoargenteus Rhoads. American naturalist. June 

 1894. 28 : 524. 

 Back a coarse grizzle of blackish and white, belly tawny; regioD about ears 

 tawny; a black line along back of tail. Total leugth, 900 (354^) ; tail vertebrae, 

 260(101^); hind foot, 125 (5). (cinereoargduteus; Lat., gray-silvered) 



The gray fox ranges throughout the southern United States from 

 Atlantic to Pacific. It is divisible into six or more geographic races. 

 The typical subspecies alone, Urocyon cinereoargenteus 

 c'in ereoargenteus, occurs within our limits. It is common in the 

 region east of the Alleghanies from Long Island and the lower Hudson 

 valley southward. 



Family Mustelidae Weasels 



Entire sole to heel not habitually applied to ground in walking ; claws novor 

 fully retractile; hind toes five; teeth 32 to 38; head variable inform. (Mus- 

 t 6 1 i d a e ; genus Mustela) 



The family Mustelidae is distributed througiiout ho{\\ hemi- 

 spheres with the exception of the Australian region. It contains about 

 twenty genera, nine of which occur in North America. l''ive of tliese 

 are found within our limits. 



