CHCEROPOTAMID^;. 249 



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

 individual, showing mm. 4, mTl, and m72, in a slightly 

 worn condition ; from the Upper Eocene of Vaucluse. 



Purchased, 1885. 



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

 of Vaucluse. Purchased, 1885. 



Genus ELOTHERIUM, Pomel l . 



Syn. Entelodon, Aymard 2 . 



Archceotherium, Leidy 3 . 

 Oltinotherium, Delfortrie 4 . 



Dentition : I. |, C. {, Pm. |, M. |. There is no third lohe to m73 ', 

 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 maffnum, Aymard 8 . 

 Entelodon ronzoni, Aymard 9 . 

 Elotherium aymardi, Pomel 10 . 

 Elotherium ronzoni, Pomel u . 

 Ottinotherium verdeaui, Delfortrie 12 . 



Hob. Europe )3 . 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 

 ' Palseontologia Indica,' ser. 10, vol. iii. 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). 

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



The only known Artiodactyle with this feature is the existing Neotragus 

 saltianus. 



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

 Loc. cit. 8 Ibid. 9 Ibid. 



Catalogue Methodique, p. 89 (1853). 

 11 Loc. cit. 12 Loo. cit. 



13 Filhol (Ann. Sci. G6ol. vol. xii. art. 3, p. 190) identifies four of Leidy's 

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



