362 



PALEONTOLOGY. 



FOBMATIONS. 



Anchilophus 



Bothriodon 



Palceochoerus 



Choeropotamus 



Choeromorus 



Poebrotherium 



Hippohyus 



Hippotherium 



Hipparion 



Heterohyus 



Entelodon 



Hycenodon 



Pterodon 



A rctocyon 



Galethylax 



Amphicyon 



Choerotherium 



Rhagatherium 



Calcaire grossier de Batignolles. 



Miocene de Moissac. 



Calcaire lacustre de Coumon. 



Paris gypsum, and Binstead. 



Calcaire lacustre, Sansan. 



Eocene (upper?), N. America. 



Miocene, Sewalik Hills. 



Miocene d'Eppelsheim. 



Marnes fluviatiles de Cucuron. 



Miocene, Sewalik Hills. 



Lignites de Soissonnais. 



Eocene superieure du Gard ; Hordwell. 



Lignites de Debruge. 



Eocene inferieure a la Vere. 



Paris gyps. 



Miocene de Sansan. 



Miocene de Bourbon nais. 



Eocene of Mauremont, Switzerland. 



The incisors in Pliolophus are small and equable (fig. 121, i). 

 The canines (ib. 9 c) are of moderate length, are separated by a 



Tfl 2.. 



Fig. 123. 



True molars, upper jaw (twice nat. 

 size), Pliolophus. 



Fig. 124. 



True molars, lower jaw (twice 

 nat. size), Pliolophus. 



vacant space from the outer incisors, and by a longer interval 

 from the first premolars, p i. The grinding teeth increase in 



