182 TJtfGTTLATA. 



Acotherulum saturninum, P. Gervais 1 . 



Sab. Europe. 



36942, 36964. Numerous upper and lower teeth ; from the Bern- 

 bridge (?) beds (Upper Eocene) of the Isle of Wight. These 

 teeth appear to agree precisely with those of typical con- 

 tinental specimens. Hastings Collection. Purchased, 1855. 



37333. An upper and part of a lower true molar ; from the Upper 

 Eocene of Bembridge, Isle of Wight. 



Presented by F. E. Edwards, Esq., 1863. 



36964 a. Cast of part of the maxilla of an immature individual, 

 showing mm. 3, mm. 4, m. 1, and m-_2. The original is from 

 the Upper Eocene of Yaucluse, France. 



Presented by Dr. Kowalevsky. 



36964 b. Fragment of the right maxilla of an immature individual, 

 containing mm. 3 and mm. 4 ; from the Headon beds (Upper 

 Eocene) of Hordwell, Hampshire. 



Hastings Collection. Purchased, 1855. 



Family ANOPLOTHERIID^E. 



Dentition : (Usually) I. |, C. ^, Pm. |, M. . In Anoplotheriuin 

 minus (Filhol) pm . 1 is absent. 



The dentition is imperfectly selenodont, and there are five columns 

 on the crowns of the upper true molars ; three placed on the anterior 

 and two on the posterior lobe. In this and all the subsequent 

 families, the metapodials and the navicular and cuboid of the tarsus 

 are distinct. 



Genus XIPHODON, Cuvier 2 . 

 Including Xiphodontherium, Filhol 8 . 



In the typical forms there is no diastema, but in certain small 

 species about the size of Ccenotherium referred by Filhol to a distinct 

 genus under the name of Xiphodontfierium , but which the writer 

 thinks may better be included in the type genus, there is a well- 

 marked interval in the dental series. The true molars are formed 

 after the type of those of Anoplotherium, but present a more coni- 



1 Comptes Eendus, vol. xxx. p. 604 (1860). 



2 Ossemens Fossiles, 2nd ed. vol. iii. p. 62 (1822). 



3 Ann. Sci. G4ol. vol. viii. art, 1, p. 200 (1877). 



