. POBBROTHEKTID.B. 149 



18923. Three proximal phalangeals ; from the caverns of Minas 

 Geraes. Claussen Collection. Purchased, 1845. 



37457. A proximal phalangeal ; from the Pleistocene of Buenos 

 Ayres. Bravard Collection. Purchased, 1854. 



18923 a. A second phalangeal ; from a cavern in Minas Geraes. 



Claussen Collection. Purchased, 1845. 



Auchenia, sp. 2. 



This species agrees in size with the Guanaco. 

 Hab. S. America. 



43244. Fragment of the -right ramus of the mandible, containing 

 the three true molars, not fully protruded ; from the 

 Pleistocene of Buenos Ayres. 



Presented by Senor J. L. Fontana, 1871. 



The following limb-bones agree in size with this species. 



37666. The distal portion of a cannon-bone ; from the Pleistocene 

 of Buenos Ayres. Bravard Collection. Purchased, 1854. 



37670. The distal extremity of a cannon-bone ; from the Pleisto- 

 cene of Buenos Ayres. 



Bravard Collection. Purchased, 1854. 



37674. A proximal phalangeal; from the Pleistocene of Buenos 

 Ayres. Bravard Collection. Purchased, 1854. 



Family POEBROTHERIID.E. 



This family is related to the Camelidce in the structure of its 

 cervical vertebrae ; but in other respects is said to be allied to the 

 Tragulidce. The teeth are selenodont; the metapodials are not 

 fused into a cannon-bone ; and the navicular and cuboid are 

 separate ; there is a trapezium. 



Genus POEBROTHERIUM, Leidy 1 . 

 Dentition* 1. J, C. {, Pm. J, M. ?. 



Poebrotherium wilsoni, Leidy 3 . 



P 

 Hab. North America. 



40958. Cast of the type cranium and mandible. The original is 



1 Proc. Ac. Nat. Sci. Philad. vol. iii. p. 322 (1847, vol. dated 1848). 



2 Loc. tit. 



