44 Mr. Owen on Remains of the Cheer opotamus, S^c, 



The fossils referable to other extinct Pachydermatous genera in the collection 

 transmitted to me by Mr. Fox, do not require any detailed description. The follow- 

 ing is a list of those which were determined without any doubt : — 



Genus Anoplotkerium, 



Sp. commune. Anterior spurious molar, left side, lower jaw. (PI. IV. fig. 5.) 

 Sp. secundarium. Second spurious molar, right side, lower jaw. (PI. IV. fig. i.) 

 Genus PalcBotherium, 



Sp. medium. Posterior molar, lower jaw. 



ditto. Portion of ditto, ditto. 



ditto. Posterior molar, upper jaw. 



ditto. Penultimate molar, upper jaw. (PI. IV. fig. 6.) 



ditto. Antepenultimate molar, upper jaw. 



ditto. Anterior spurious molar. 



ditto. Crown of a canine. 



ditto. Complete incisor. 



crassum. Second molar, right side, lower jaw. 



curium ? A molar tooth. 



minus. Right ramus of the lower jaw with six grinders*. 



ditto. Proximal end of the right radius. 



ditto. Shaft and distal end of right tibia. 



ditto. Portion of the base of the skull. 



Since examining the above collection I have seen the specimen from the Bin- 

 stead quarries, now in the Museum of the Geological Society, conjectured by Mr. 

 Pratt to belong to a species of Ruminantia closely allied to the genus Moschus. 

 On comparing this fossil with the corresponding part of the Moschus moschiferus, 

 which it resembles in size, I find that the grinders are relatively broader in the 

 fossil, and that the last molar has the third or posterior tubercle distinctly divided 

 into two by a middle longitudinal fissure, which is not the case in the Moschus. 

 The grinding surface is less oblique in the fossil than in the Moschus or other Ru- 

 minants ; and the form of the coronoid process of the lower jaw differs in a still 

 greater degree than any of the above-mentioned particulars from that of the Mos- 

 chus and other Ruminants, and strongly bespeaks the pachydermatous character of 

 the fossil in question. 



plantigrade genus Arctonyx immediately suggests itself to the mind ; this genus is placed in the family 

 of the Bears by Cuvier and Geoffroy St. Hilaire, the latter of whom also notices its points of resemblance 

 to the Hog. Fischer sums up the characters of Arctonyx as follows : " Rostrum suillum : oculi minuti: 

 auriculcB breves : habitus et ungues Ursorum : cauda nudiuscula. Genus Feras inter Belluasque inter- 

 medium." — Synops. Mammal., p. 152. 



* This interesting fossil was discovered in the Sea-field quarry, Isle of Wight, and is now in the 

 possession of Mr. Henry Beech. 



