CJENOTHERIID^. 167 



Genus OffiNOTHERIUM, Bravard 1 . 



Syn. Oplotherium, Laizer and Parieu 2 . 

 Microtherium, H. v. Meyer 3 . 

 Zooligus, Aymard 4 . 

 Plesiomeryx, P. Gervais 5 . 



In the typical forms there is no diastema in the dental series, 

 although a distinct one exists in certain forms to which the name 

 Plesiomeryx was applied. Pilhol has, however, shown, in the Ann. 

 Sci. Geol. vol. xii. art. 3, pp. 77-84, that there is such a gradual 

 transition in this respect from one type to the other that no generic 

 distinction can be drawn between Ccenotherium and Plesiomeryx ; 

 the diastema being present in one race of Camotherium gracile and 

 absent in another. There are four distinct metapodials, and the 

 navicular and cuboid elements of the tarsus are doubtless separate. 



Caenotherium commune, Bravard 6 . 



Syn. Oplotherium leptognathtim, Laizer and Parieu "'. 

 Ccenotherium leptognathum, Pomel 8 . 

 Ccenotherium elegans, Pomel 9 . 

 Microtherium renggeri, H. v. Meyer 10 . 



This species is of medium size, and has no diastema in the type 

 form. It is recorded by Eilhol from Cournon and the Quercy phos- 

 phorites ; the specimen described by him from the latter deposits 

 being named var. jprocommune. 



Hab. Europe. 



34964. Slab containing a number of skulls, jaws, and limb-bones ; 



{Fig.) from the Lower Miocene of Cournon (Puy-de-D6me), 

 France. This specimen is figured by De Blainville in his 

 ' Osteographie,' Genus Anoplotherium, pi. vii. The length 

 of the series of upper cheek-teeth is 0,0285 in one, and 

 0,029 in another specimen. The length of the space 

 occupied by the seven lower cheek-teeth is 0,029 ; the 

 length of the femur 0,059 ; and that of the tibia 0,070. 



Bravard Collection. Purchased, 1852. 



1 Monogr. d. Genre Cainotkerium (1835), Cainotkerium. 



2 Ann. Sci. Nat. ser. 2, vol. x. p. 335 (1838). - 



3 Neues Jahrb. 1837, p. 557. 



4 In Pictet's ■ Paleontologie,' 2nd ed. vol. i. p. 310 (1853). 



5 Journ. Zool. vol. ii. p. 369 (1873). 



6 Loc. cit. 7 Loc.cit. 



8 Catalogue Methodique, p. 96 (1853). 9 Ibid. p. 95. 



10 Neues Jahrb. 1837, p. 557. 



