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II. — Description of some Fossil Remains of Chseropotamus, Palseotherium, 

 Anoplotherium, and Dichobunes, from the Eocene Formation, Isle of 

 Wight. 



By RICHARD OWEN, Esq., F.G.S., F.R.S. 



[Read November 7, 1838,] 



Plate IV. 



X HAT the freshwater strata of the Eocene formation in the Isle of Wight were 

 once trodden by Pachydermatous quadrupeds, belonging to some of the extinct 

 genera established by Cuvier from the fossils of the corresponding strata of the 

 Paris basin, is so well-established a fact, that some apology may seem necessary 

 for laying before the Geological Society additional evidence of the existence in 

 the above strata of such fossils, after the discovery of the remains of Palaotherium 

 and Anoplotherium already made by Mr. Allan* and Mr. Prattf . 



Having, however, been favoured by the Rev. W. Darwin Fox with some fossil 

 remains from Binstead and Sea-field quarries, Isle of Wight, apparently more nu- 

 merous and better preserved than those which have hitherto been discovered in 

 that locality, they seemed to possess sufiicient interest to justify the present com- 

 munication, as they establish not only the fact of the existence of more than one 

 species of both Palaotherium and Anoplotherium, but likewise of the Charopotamus 

 Cuvieri\, hitherto known only by Cuvier's description of very imperfect fragments 

 discovered in the gypsum quarries of Montmartre and Villejuif. 



The specimen of Charopotamus, in Mr. Fox's collection, is the right ramus of 

 the lower jaw, wanting only a small portion of the symphysis and the tip of the 

 coronoid process. PI. IV. fig. 1, la, and 2. 



AH the teeth are present which belong to this portion of the lower jaw, except- 



* Dr. Buckland, in Annals of Philosophy, New Series, November 1 825, vol. x. p. 360. 



t Geological Transactions, 2nd Series, vol. iii. p. 451. 



J Chceropotamus Gypsorum, Desm., Chceropotamus Parisiensis, V. Meyer. The latter naturalist has 

 founded, upon some fossil remains from the Molasse of Rappenfluhe and Georgensmiind, two other species 

 of this genus, which he calls Charopotamus Meissneri and Soemmeringii. See Diefossilen Zdhne und 

 Knochen von Georgensmiind, 4to, pp. 51-55, 1834. 

 VOL. VI. — SECOND SERIES. G 



