134 TOGTJIATA. 



arcuated. The length of the space occupied by the last 

 six teeth is 0,045. Bravard Collection. Purchased, 1852. 



34301. The greater part of the left ramus of the mandible, containing 

 the last five cheek-teeth ; from the Lower Miocene of Allier. 

 This specimen is precisely similar to the last. 



Bravard Collection. Purchased, 1852. 



Amphitragulus gracilis, Pomel 1 . 



This species is described only on the evidence of the mandible, 

 and is the smallest form from Allier, the length of m. 3 in the type 

 being 0,0087. 



Hob. France. 



34367. Fragment of the left ramus of the mandible, containing the 

 last five cheek-teeth and a part of p m . 2 ; from the Lower 

 Miocene of Allier, France. This specimen agrees very 

 closely with the type mandible figured by Filhol in the 

 Ann. Sci. Geol. vol. xi. pi. xix. fig. 11 ; but mTs is slightly 

 longer, its length being 0,0105. 



Bravard Collection. Purchased, 1852. 



34290. Fragment of the left ramus of the mandible, containing 

 mm. 3, mm. 4, and m . 1 ; from the Lower Miocene of Allier. 

 This specimen agrees precisely with the one figured by 

 Filhol in the Ann. Sci. Geol. vol. xi. pi. xix. fig. 10. 



Bravard Collection. Purchased, 1852. 



Bones of Palaeomeryx and Amphitragulus from the Lower Miocene 

 of Allier, France. 



From the abundance of the various species of Palceomeryx and 

 Amphitragulus in the Lower Miocene of Allier, it is probable that 

 the greater number of the larger bones of a ruminant-like structure 

 belong to these genera. It seems, however, to be impossible to 

 distinguish between the vertebra) and proximal limb-bones * of the 

 smallest species and those of CcenotJierium ; and some of the medium- 

 sized specimens may belong to Lophiomeryx. Owing to the large 

 number of species of Palceomeryx and Amphitragulus, it appears 

 hopeless to attempt to refer limb-bones or vertebra) to their proper 

 species, especially when there is also a doubt as to their generic 

 determination ; but the largest specimens in all probability belong 



1 Catalogue Methodique, p. 102 (1853). 



a There is, of course, no difficulty in distinguishing the metapodials. 



