160 TOGU1ATA. 



27798. Two fragments of associated rami of the mandible; from 



the Lower Miocene of Ronzon. This specimen shows the 

 last three premolars and the first two true molars. 



Croieet Collection. Purchased, 1848. 



27799. Part of the right ramus of the mandible, showing the last 



milk-molar, mTT, and mT2 ; from the Lower Miocene of 

 Ronzon. Croizet Collection. Purchased, 1848. 



M. 1396. Three cheek-teeth, and the metacarpus, wanting the distal 

 epiphysis ; from the Upper Eocene of Caylux (Tarn-et- 

 Garonne), France. The metacarpus agrees in general 

 characters with the one figured by Filhol in the Ann. 

 Sci. Ge'ol. vol. xii. pi. xxxi. fig. 190, but is of rather 

 larger size. Purchased, 1884. 



Genus LOPHIOMERYX, PomeP. 

 Dentition : 1. 1, C. ? r , Pm. J, M. |. 



This genus, of which only the mandible has been hitherto known 

 with certainty, is placed by Riitimeyer, in the ' Natiirliche Geschichte 

 der Hirsche ' (Abh. schw. Pal. Ges. 1883, pt. 2, p. 60), between 

 Gelocus and Dichodon. In the type species the first lobe of the 

 lower molars is somewhat like those of Anoplotherium, while the 

 second is ruminant-like. A lower jaw from the French Upper 

 Eocene, figured by Filhol in the Ann. Soc. Sci. Phys. Nat. Toulouse, 

 1882, pi. x., under the name of Metriotherium mirabile, evidently 

 indicates an allied form with a less specialized hinder lobe to the 

 molars, and might perhaps be referred to the present genus. The 

 family position of the genus is provisional, and its dentition 

 seems to retain traces of affinity with the Perissodactyla. A second 

 species is described in the Addenda. 



Lophiomeryx chalaniati, Pomel 2 . 



This species occurs both in the Upper Eocene and the Lower 

 Miocene. 



Hob. France. 



34960. The greater part of the left ramus of the mandible of an 



(Fig.) adolescent individual, containing mm73, mm74, and the 



three true molars ; from the Lower Miocene of Allier, 



France. In this specimen, which is represented in the 



accompanying woodcut (fig. 17), the last true molar has a 



1 Catalogue Methodique, p. 97 (1853). 



2 Ibid. p. 98. 



