UROCYON. 



Hensel, 118; zygomatic width, 66; interorbital width, 23.5; palatal 

 length, 56; palatal arch to tip of pterygoid process, 20; anterior 

 width of pterygoid fossa, 9; posterior width of basioccipital, 13; 

 length of nasals, 40; length of upper tooth row, anterior edge of 

 canines to posterior edge of last molar, 5 1 ; length of lower tooth 

 row, 57; length of mandible, 88. 



g. I'l-ix-i/ini cinereo-argenteus ori/tlion* Bangs. 



Urocyon cinereo-argenteus ocytJwus Bangs, N. Engl. Zool. Club, i, 

 1899, p. 43. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., u, 

 1901, p. 309. Zool. Ser. 

 SWIFT GRAY Fox. 



Type locality. Platteville, Grant County, Wisconsin. 

 Geogr. Distr. Upper Mississippi Valley. 



//. Crnri/nii ci u frt'ti-nror n Irus Inn-cull x Merriam. 



Urocyon cinereo-argenteus borealis Merr., Proc. Biol. Soc. Wash., 



xvi, 1903, p. 74. 

 NEW ENGLAND GRAY Fox. 



Type locality. Marlboro, seven miles from Monadnock, Cheshire 

 County, New Hampshire. 



Genl. Char. Larger than U. cinereo-argcntcns. Skull with longer 

 nasals, more slender posteriorly; palate and pterygoid fossa broader; 

 last upper molar and fourth lower premolar, large. 



Color. Like U. cinereo-argenteus. 



Measurements. Skull: basal length, 126; Hensel 118.5; z yg" 

 matic width, 73; palatal length, 63; postpalatal length, 55; front of 

 canine to back of last upper molar, 56. 



/. f'rtiri/oit ri iKTt'o-n !!_>< nidi s litttinilix (Baird). 



Vulpes (Urocyon) liltcralis Baird, N. Am. Mamm., 1857, p. 143. 



Uro( T<>;/ cinereo-argenteus littoralis Elliot, Syn. X. Am. Mamm.. 



F. C. M. Pub., u, 1901, Suppl., p. 507. Zool. Ser. 

 SAX MIGUEL ISLAND GRAY Fox. 



7'v/v locality. San Miguel Island, Santa Barbara Islands. Santa 

 Barbara County, California. 



Geogr. Distr. Known only from San Miguel Island. 



cinereo-argenteus xnnlnfrn-.tr ( 

 Urocyon littoralis santacruzG Mcrr., Proc. Biol. Soc. \Vasli., xvi, 



1903- !' 75- 

 SANTA CRUZ ISLAND GRAY Fu\. 



Type It'otlily. S;mta Cruz Island, Santa Harkim Islands. Santa 

 Barbara County, < 'alii-.niia. 



Geo^v. Di^lr. Known from \\\^ locality only. 



