PHACOCHCEBID^I. LISTUIODONTID.E. 275 



columns or denticules. There are indications of a transition between 

 this family and the preceding one. 



Genus PHACOCHCGRUS, Cuvier l . 



$3I)acotficrruS, sp. a. 



It appears impossible to distinguish the detached molars of 

 P. africanus from those of P. cethiopicus ; the specimens noticed 

 below belong to one or other of these species. 



Hob. Africa. 



48063. A last true molar ; apparently recent, S. Africa. 



Presented by J. P. Squier, Esq., 1877. 



M. 67. A last true molar ; from a Pleistocene deposit, S. Africa. 



Purchased, 1880. 

 Phacochcerus, sp. b. 

 Hob. S. Africa. 



41389. A last true molar ; from a superficial deposit near Colesberg, 

 S. Africa. This tooth appears of a narrower type than the 

 teeth of either of the two existing species, the tubercles of 

 the middle row being longer, more compressed laterally, 

 and fewer in number. Purcliased, 1869. 



Family LISTRIODONTID^J. 



Dentition : I. |, C. j, Pm. |, M. |. The true molars carry simple 

 transverse ridges ; the upper premolars are simpler than the true 

 molars. 



Genus LISTRIODON, H. v. Meyer \ 



.Syn. Tapirotherium, Blainville 3 (ex Lartet, MS.). 

 Lophiuchcerus, Bayle 4 (ex Lartet, MS.). 



Listriodon splendens, H. v. Meyer . 



Syn. Tapirotherium larteti, P. Gervais 9 . 

 Listriodon larteti, P. Gervais 7 . 



1 Regne Auiraal, vol. i. p. 236 (1817). 



2 Neues Jahrb. 1846, p. 466. 



3 Ost6ographie, Genus Tapirus, p. 52 (1846). 



4 Bull. Soc. G<ol. France, ser. 2, TO!, xiii. p. 29 (1856). 



5 Loo. cit. 



8 Comptes Eendus, vol. xxviii. p. 547 (1849). 

 7 Zool. et Pal. Francoises, 1st ed. vol. i. p. 50 (1848-52). 



T 2 



