MAMMALIA. 235 



?Mule or Black-tailed Deer, Le Raye; Lewis fy Clark, Travels; 

 Wied, Voy. Amer. Merid. iii. 273, & vig. A, B. 



Cervus macrotis, Say, Long's Exped. Rocky Mount, ii. 88. 254 ; 

 H. Smith, Griffith A. K. v. 794 ; Fischer, Syn. 444. 615 ; Sun- 

 devall, Pecora, 59 ; Richardson, Faun. Bor. Amer. 254. t. 20 ; 

 Peak, U. St. Expl. Exped. 41. t. 10. ined. fig. at p. 43, fore- 

 feet; Sabine, Franklin Journ. 667 ; Harlan, Fauna, 243 (Great- 

 eared Deer); H. Smith in Griffith A. K. iv. 133, v. 794 (Black- 

 tailed Deer). 



C. auritus, Warden, Etats Unis, ed. Gall. v. 640; Desmoul. Diet. 

 Class. H. N. iii. 379. 



Hab. Arkansas ; Rocky Mountains ; on rocky hills covered with 

 trees. 



Rather larger than Cervus Virginianus, and having more the 

 general aspect of the Wapiti ; destitute of the black submaxil- 

 lary marks which are always present on C. Lewisii and C. Vir- 

 ginianus. Horns larger and more spreading. Hoofs rounded, 

 the under surface concave. Tail pale ferruginous, destitute of 

 hair beneath, and having a tuft of black hair at the extremity. 

 In summer pale ferruginous, darkest on back. Chin, throat, and 

 inside of thighs and belly, white. Hair flattened and undulated. 

 Total length 67 in. ; tail 7 in. ; height at shoulders 36 in. T. 

 Peale. 



This species is most abundant on the eastern slope of the 

 Rocky Mountains, and delights in rocky hills covered with cedars 

 and pine-trees. By the flattened and concave formation of the 

 hoofs, they are enabled to climb the rocky steeps with much 

 greater facility than other species of Deer, and for the same rea- 

 son we infer that they are more at ease in the snowy regions of 

 the mountains. T. Peale, I. c. 43. 



Mules between Cervus Virginianus and C. gymnotis have been 

 described. Pucheran, Comptes Rendus, Acad. Sci. 1849, 774. 



According to M. Pucheran, the chief difference between C. 

 Virginianus and C. gymnotis is, that the former has the chest 

 and belly white, and C. gymnotis the belly white and the chest 

 brown. 



Doubtful Species. 



1 . The Cariacou Deer, Cervus nemoralis, H. Smith in Griffith 

 A. K. iv. 137. t. . & v. 798 ; Fischer, Syn. 617, described and 

 figured from a pair said to come from Virginia, and is also said 

 to inhabit Honduras (see p. 138). It appears by the figure of 

 the horns rather to belong to this genus than to Coassus. It 

 is a species yet to be identified. Professor Sundevall regards it 

 as a species of Cariacus. 



