15. UEOCTON. 20t) 



Isatis gris, F. Cuv. Mamm. Litltog. 



Vulpes fuliginosus, Oerrard, Cat. of Bones of Mamm. p. 88. 



Vulpes lagopus (Arctic Pox), Atid. §• Bach. N. A. Quad. iii. t. 132 ; 



Baird, Mamm. N. A. p. 137. 

 Oanis isatis, Gmelm, J!^ov. Com. Petrop. y. p. 358. 



Hah. Arctic region : Newfoundland (^wrfttftow). 



Var. smaller ? Pessez or Oolubri. 



Oanis isatis, Omelin, Nov. Com. Petrop. v. p. 858 ; Thienem. 



Canis lagopus, Pallas, Zoogr. R.-Asiat. i. p. 51, t. 5 ; Tiles. N. Act. 



Nat._ Cur. xi. p. 375, t. 47. 

 Canis isatis, Gmelin, Nov. Com. v. p. 358 ; Buffan, H. N. xiii. p. 372 



(part). 



Hah. North Asia. 



E. Bbistlb-tailed Foxes. Tail elongate, covered with soft elongated hair 

 and with a central concealed crest of stiff hairs wnmixed loith soft 

 fur. Skull — temporal muscles separated hy a wide flat a-own, narrow 

 at the occiput.— Gray, P. Z. S. 1868, p. 521. 



15. UEOCYON. 



Muzzle short. Temporal crests of the skull always widely sepa- 

 rated. Postorbital process thin, spread out, concave above. A 

 supplementary tubercle on the lower sectorial. The under jaw with 



an angular emargination below. Pupil ? Bullae of ear-bones 



moderate, ovate, swollen. Upper tubercular grinders large, long and 

 broad. 



Urocyon, Baird, Mamm. N. A. p. 121 ; Grag, P. Z. S. 1868, p. 521. 



1. Urocyon virginianus. (Grey Pox.) B.M. 



Canis virginianus, Hrxl. S. A. p. 667, 1777 (from Catesbg). 



Canis vulpes virginianus, Bich. F. B. A. i. p. ^96, 1827. 



Vulpes virginianus, Dekay, N. Y. Zool. i. p. 46, t. 7. f. 2, 1842 ; Aud. 



8f Bach. N. A. Qmd. \. p. 162, t. 21. 

 Oanis cinereo-argenteus, Erxl. S. A. p. 576, 1777 ; Schreber, Sdugeth. 



p. 360, t. 92, 1778. 

 Canis griseus, Bodd. Flench. Anim. i. p. 97, 1784. 

 Urocyon virginianus, Ch-ag, P. Z. S. 1868, p. 522. 

 Gtrey Pox, Catesbg, Carol, ii. p. 73, t. 78, 1731 ; Pennant. 

 Corsak Fox, Penn. Quad. p. 236, 1781 (not Linn.). 

 Vulpes (Urocyon) virginianus, S. Baird, Mamm. N. A. p. 138. 

 Fulvous-necked Fox, Shaw. 

 Renard tricolors, Cuv. B. A. i. p. 155. 



Hah. North America. Skulls 179 a, h, c, d, e, female adult. 



2. Urocyon littoralis. (Coast-Fox, or Short-tailed Fox.) 



Tail one-third the length of the body, with a concealed mane of 

 stiff hairs and with a black stripe above. Fur above hairy and 



