192 APPENDIX. 



M. POMEL'S VIEWS OF THE SPECIES. 



In page 142 we have referred to the opinions of M. Pomel ; his name in that place, owing 

 to a peculiarity in the writing of the manuscript from which it was copied, being erroneously spelt 

 Pamel. This excellent palaeontologist, in a communication to the French Geological Society of 

 March 20, 1848, says : " Taking into view the discovery of many extinct genera, we see plainly 

 that the pachydermata and ruminantia of the existing fauna do not admit of separation." He 

 therefore divides the ungulated mammalia into four great families, viz. the Proboscidians, the 

 Perissodactyles, the Artiodactyles, and the Ruminants. 



1st. The Proboscidians include the genera Elephant, Mastodon. — Dinotherium. 



2d. The Perissorlactyles include the genera -Daman, Acerotherium and Rhinoceros, Elas- 

 motherium. — Hippotherium, Horse. — Paloplotherium, Plagiolophus, Anchitherium, Palseothe- 

 rium, Macrauchenia. — Tapirs, Coryphodon, Lophiodon, Hyracotherium. — Adapis, Microchoerus. 



3d. The Artiodactyles comprise the genera Elotherium, Hippopotamus, with" its sub-genus 

 Hexaprotodon, the Phacochcerus, Sus, Babirussa, Pecari, Palaeochrerus (Hippohyus ?). — Cha?ro- 

 potamus, Anthracotherium, Ancodas, Synaphodus (Anthracoth-gergovianum). — Chalicotherium 

 (or Anisodon), Anoplotherium, Xiphodon, Dichobunis, Cainotherium. — Dichodon, Merycopota- 

 mus, Chreromeryx. 



4th. The Ruminants. Genera not enumerated. 



It will be seen that M. Pomel, like M. De Blamville and some others, unites the Mastodon 

 genus with that of the Elephant. He is of opinion that the Mastodon of Western Europe may 

 be distinguished into five species: — 



1st. M. Anguslidens, the name originally given by Cuvier, is limited by M. Pomel to the 

 Italian species, with four ridges in the three penultimate molars, but no beak. 



2d. 31. Long-irostris, distinguished, as already stated' in our text, by four ridges in the three 

 penultimate molars, and a prolonged lower jaw, containing two incisor teeth, or inferior tusks. 



3d. 31. Cuvieri, from Gers and Orleans, possessing three ridges in the three penultimate 

 molars, and a prolonged lower jaw. 



4th. 31. Tapiroides, a species with tapiroid teeth, said by him to accompany the preceding 

 species, but we think not generally admitted. 



5th. 31. Buffonis, a species constituted by M. Pomel from specimens characterized by short, 

 thick teeth. To. this species he refers the Siberian teeth. 



