ORDER RUMINANTIA. 195 



ing gradually into white upon the shoulders, from whence 

 the whole animal, including the tail with its terminal tuft, 

 and the legs, are milk-white ; the limbs are firm, and rather 

 stout ; the hoofs low, flat, round, and black, resembling 

 somewhat those of the Rein-deer : the tail does not reach 

 to the houghs. The female has two mammae, no inguinal 

 pores, and appears, in all other respects, like the male. 



The first indication of this species occurred to us in 1819, 

 while viewing the Museum of Bourdeaux, where we found 

 a horn of Addax, which was there mistaken for one of 

 Cervicapra, and had been brought from Senegal*. Upon 

 the measurement and description of this fragment we esta- 

 blished the species, and found it fully confirmed in 1824, 

 when the complete specimens were placed in the Museum 

 of Frankfort. We are indebted to the liberal institutions 

 of that splendid establishment, formed by the public spirit 

 of the lovers of science in that city, and in particular to 

 the kindness of Professor Grsetzmer, for the means of 

 drawing and making measurements of many new and inte- 

 resting zoological specimens. Several of both sexes of the 

 Addax were sent from Nubia by M. Ruppel. It appears 

 that they reside in pairs on the barren deserts ; their broad 

 spreading hoofs seem intended to facilitate their progress 

 over yielding sands, and their powers enable them to ex- 

 tend over the whole Zahara, so as to be found as far west 

 as Senegal. Along with the above specimens we found the 

 complete spoils, skin, and skull of a calf, which it is pre- 

 sumed belonged to this species, and was obtained at the 

 time with the female, whose mammae indicate that they had 

 milk when she was shot. This little creature is higher on 

 the legs than an adult goat, with hoofs very low and flat, 

 the horns little more than an inch long, and the colour of 



* Dr. Caius communicated to Gesner a drawing of the head of 

 this species, though it has been mistaken by zoologists for that of 

 A. Antilope. 



