240 CLASS MAMMALIA, 



terior part of the upper arm, the flanks passing obliquely 

 upwards towards the hips, croup and thighs, are fulvous- 

 brown, with a cast of dull purple ; the tail is six inches 

 long, but the hair is loose, and furnished like a brush, 

 making it nearly nine inches , the base dark, the middle 

 fulvous below, and the tip white; the legs are strong, 

 tawny, and a dark streak marks the anterior face of those 

 of the male. On the back, croup, and sides, the hair is 

 long, hard, loose, not very abundant, but feathering in 

 whirls diversely turned, but most from the croup forwards; 

 the skin and hoofs are black, as are the mammae of the 

 female, which are four in number. This sex is lower and 

 longer, without horns, but strongly made. 



The Red Rheebock inhabits the rocky mountains of 

 Caffraria in small families of six or eight, seldom appearing 

 on the plain ; it springs with great force and audacity 

 among rocks, but is not very swift, running with galloping 

 action somewhat like a horse. 



The Cream-coloured Antelope. (A. Isabellina). We 

 suspect this species to be the Voalebock of the colonists, 

 and a mere variety of colour of the former ; it was esta- 

 blished by M. Afzelius from a specimen in the collection 

 of Thunberg. It is four feet ten inches long, two feet six 

 inches at the shoulder, and two feet eight inches at the 

 croup. The head from the nose to the horns is ten inches ; 

 the ears six inches and a half ; the horns are eleven inches 

 long measured upon the curve ; their circumference at the 

 base five inches four lines ; distant one inch six lines at 

 base ; their basal direction at first parallel with the fore- 

 head, bending slightly upwards by degrees ; they are black, 

 round, shining, obliquely annulated, rough at base, six or 

 seven in front, eight or nine in rear, because some of the 

 superior are incomplete. The lachrymary sinus indistinct, 

 only marked by a naked triangular spot situated before and 

 beneath the eye ; the incisors very short, the intermediate 



