Dr. J. E. Gray on the Gaeniul. 219 



Huamela leucotis. 



" Hoofed Animal,^'' Ilawkesworth's Voyages, vol. i. p. 388. 



Equus bisiilci/s, Molina's Chili, p. 320, 1782 (from Hawkesworth and 



other copiers of Molina). 

 Capreo/ua /cucotis, Gray, Proc. Zool. Soc. 1849, p. 64, t. xii. (female). 

 Capreolus (?) huemula, Knowsley Menag. 

 Furcifer huamel, Gray, P. Z. S. 1850, p. 236. 

 Xenelaphus leucotis (part.), Gray, Cat. Ruminant Mamm. p. 89. 



Hah. Magellan Straits ( Ca^:*^ WaUis, 1767; Molina, 1782; 

 Lord Derhy, 1849) ; Patagonia {Don Enrique Simpson, 

 1872). 



Male and female (Brit. Mus.). 



This animal is most likely the one mentioned by Captain 

 Wallis, as (1) it inhabits the Magellan Straits ; (2) it is the 

 only hoofed animal on the west coast of America nearly the 

 size of a donkey ; (3) it was sent to the British Museum from 

 Don Enrique Simpson with the name of " Guemul " used by 

 Molina. 



I have not been able to trace the origin of this name, and do 

 not know if it is Patagonian or Chilian. It has been applied 

 by zoologists to different animals which tliay have discovered. 

 Gay applies it to Furcifer antisiensis. I, thinking that it was 

 the animal mentioned by Molina, applied it to Xenelaphus, and, 

 in the Knowsley Menagerie, thought it might be the animal I 

 described as Gapreolus leucotis, which I now think is the most 

 correct determination. 



The horns are very unlike those of any other American 

 deer, and are more like those of the young stag, or Cervus 

 elapkus, but very distinct from it, and probably more different 

 from it in the adult state, if those we have belong to a young 

 animal. It is the only South-American stag that has a 

 basal snag, the absence of which is a peculiarity of those 

 animals. 



Probably the fur of this animal, like that of the roebuck 

 kind, is formed of shorter, more slender hair in summer. 



It is not necessary to figure the animal, as the figure by 

 Wolf, given in the P. Z. S. (1849, p. 64, t. xii.) is very cha- 

 racteristic and accurate. I observe in the description that it 

 is at least three times as large as the usual European roebuck, 

 is much darker, and has not the white spots extending over 

 the upper part of the side of the haunches. 



The height at the shoulders of Lord Derby's specimen is 

 38 inches ; and the length of the body is 40 inches, of the head 

 12 inches, of the cars 7 inches, of the tarsus, from the false 

 hoof to the hock, 12^ inches. 



