CH(EEOPOTAMID^E. 249 



M. 2196. Fragment of the left ramus of the mandible of a young 

 individual, showing mm. 4, m. 1, and m . % in a slightly 

 worn condition ; from the Upper Eocene of Yaucluse. 



Purchased, 1885. 



M. 2197. The fourth left lower milk-molar ; from the Upper Eocene 



of Yaucluse. PurcJiased, 1885. 



Genus ELOTHERIUM, Pom el l . 



Syn. Entelodon, Aymard 2 . 



Arcliceotlierium, Leidy 3 . 

 Oltinotherium, Delfortrie 4 . 



Dentition :— I. |, C. \, Pm. \, M. |. There is no third lobe to m. 3 5 , 

 and the premolars are of moderate size, by which characters the 

 genus is distinguished from Tetraconodon 6 . For E. mortoni see 

 Addenda. 



Elotherium magnum, Pomel 7 . 



Syn. Entelodon magnum, Aymard 8 . 

 Entelodon ronzoni, Aymard 9 . 

 Elotherium aymardi, Pomel 10 . 

 Elotherium ronzoni, Pomel n . 

 Oltinotherium verdeaui, Delfortrie 12 . 



Hah. Europe 13 . The Woodwardian Museum, Cambridge, possesses 

 specimens from the Hempstead beds of the Isle of Wight. 



29630. Cast of a portion of the right maxilla, showing the seven 

 cheek-teeth. The original is in the Paris Museum, and 

 was obtained from the Lower Miocene of Eonzon, near 



1 Bull. Soc. Geol. France, ser. 2, vol. iv. p. 1083 (1847). The usual reference 

 to the Arch. Sci. Phys. Nat. of the same year is not the original one. In the 

 ' Palteontologia Indica,' ser. 10, vol. hi. p. 99, the writer adopted the name 

 Entelodon, but he now agrees with Flower in taking Elotherium. 



2 Ann. Soc. Agric. Sci. le Puy, vol. xii. p. 240 (1848), teste Filhol. 



3 Proc. Ac. Nat. Sci. Philad. vol. v. p. 92 (1850 ; vol. dated 1852). 



4 Act. Soc. Linn. Bordeaux, vol. xxix. p. 261 (1873). 



5 The only known Artiodactyle with this feature is the existing Neotragus 

 saltianus. 



6 Vide ' Palaeontologia Indica,' ser. 10, vol. i. pi. x. 



7 Loc. cit. 8 Ibid. ° Ibid. 



10 Catalogue Methodique, p. 89 (1853). 



11 Loc. cit. l2 Loc. cit. 



13 Filhol (Ann. Sci. Geol. vol. xii. art. 3, p. 190) identifies four of Leidy's 

 North-American species with E. magnum, but this is doubtful. 



