172 CLASS MAMMALIA. 



same stature; the pasterns are high, and the hoofs remark- 

 ably low and black ; the texture of the hair is thick, coarse, 

 flattened, undulating, and deciduous*. 



It does not appear that the characters of the female have 

 been observed, excepting that it has horns like the male. 

 The species inhabits the borders of the Missouri, the 

 north-western territory of the United States, and, according 

 to Dr. Harlan, the great plains of the Columbia. It is de- 

 scribed as wonderfully fleet, and darting over the plain 

 without stopping or looking round, as occurs in many of 

 the African species. 



The Palmated A. (A. Palmata.) Whether the animal 

 here noticed be a real species or only a variety of the 

 preceding, is a question as yet undecided. In the paper 

 before alluded to, a pair of horns are described and 

 figured, still measuring eleven inches along the curve, 

 although they are partly injured at the base. They are 

 no doubt the same which M. de Blainville ascribed to 

 his Cervus Ha?natus, notwithstanding that they are per- 

 fectly hollow, two inches and an half across in their greatest 

 diameter by one inch and a quarter in the shorter ; their 

 shape is greatly compressed at the anterior and posterior 

 parts into a sharp edge, and the substance a hard, black, 

 and brittle horn, with the surface strongly pearled and 

 striated for about seven inches upwards. Anteriorly, how- 



* There is a small increase in my dimensions compared with 

 those of Mr. Ord taken from the same specimen ; but although I 

 noted them while a friend made the measurements with an inch 

 tape, I suspect the error on my side. The despatch of a traveller 

 should in this case give way to the more leisurely observations of a 

 resident of known accuracy. Dr. Harlan, however, Faun. Amer., 

 page 251, describes the flanks as black, probably from an error in 

 the press, and the reddish mane on the neck is not in my notes nor 

 in my figure. 



