274 ON PLATYGONUS COMPRESSUS. 



the articular faces for the scaphoides, semilunare, and cuneiforme 

 are very oblique, as in the group just mentioned. The double 

 groove of the lower articular surface of the humerus also shows an 

 approach towards the ruminant and suiline tribes, while the large 

 foramen of the coronoid cavitj is a character found in but few spe- 

 cies, and, with the very oblique external contour, serves very well 

 to distinguish the bone of the present genus, when the articular 

 part is destroyed. The obliquity of the inferior head, with refer- 

 ence to the long axis of the bone, is much greater than in Sus ; and 

 the external pulley very much deeper than in Sus or any ruminant. 

 In a future memoir, on the Hyops depressifrons, a suiline animal, 

 the remains of which were found in the same locality, will be de- 

 tailed my reasons for referring to the genus with trenchant canines 

 the fragment of calcaneum and metatarsal bones described in the 

 preceding pages. 



