MAMMALIA. 935 
? Mule or Black-tailed Deer, Le Raye; Lewis & Clark, Travels ; 
Wied, Voy. Amér. Meérid. iti. 273, & vig. a, B. 
Cervus macrotis, Say, Long’s Exped. Rocky Mount. 1. 88. 254; 
H. Smith, Griffith A. K.v. 794; Fischer, Syn. 444. 615; Sun- 
devall, Pecora, 59; Richardson, Faun. Bor. Amer. 254. t. 20; 
Peale, U. St. Expl. Exped. 41. t. 10. med. 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. vy. 640; Desmoul. Dict. 
Class. H. N. 11. 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- 
laryfmarks which are always present on C. Lewisii and C. Vir- 
gimianus. Horns larger and more spreading. Hoofs rounded, 
the under surface concave. Tail pale ferrugmous, destitute of 
hair beneath, and having a tuft of black hair at the extremity. 
In summer pale ferrugimous, darkest on back. Chin, throat, and 
inside of thighs and belly, white. Hair fiattened and undulated. 
Total length 67 in.; tail 73in.; height at shoulders 36 in.—T. 
Peale. 
This species is most abundant on the eastern slope of the 
Rocky Mountains, and delights im 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, l. c. 43. 
Mules between Cervus Virginianus and C. gymnotis have been 
described.— Pucheran, Compies Rendus, Acad. Sci. 1849, 774. 
According to M. Pucheran, the chief difference between C. 
Virginianus and C. gymnoiis 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, 
