169 



M. 1402 a. Two specimens of the hinder portion of the right raraus 

 of the mandible ; from the Upper Eocene of Caylux. 

 These specimens agree very closely with the jaw figured 

 by Filhol in the Ann. Sci. Geol. vol. viii. pi. xii. figs. 

 269-70, under the name of var. procommune. 



Purchased, 1884. 



M. 1410 a. The hinder part of the left ramus of the mandible, re- 

 sembling the last ; from the Upper Eocene of Caylux. 



Purchased, 1884. 

 Caenotherium, sp. 



This form is not unlike C. commune, with the exception that 

 there is a diastema between the canine and pm. 1, and another 

 between pm. i and pm. 2. The instance of the two varieties of 

 C. gracile noticed above indicates, however, the need of caution in 

 founding new species merely on the presence or absence of a dia- 

 stema. Under these circumstances it appears desirable to await 

 additional specimens before deciding whether the present ones 

 should be regarded as a new species, or merely as a well-marked 

 variety. The name bravardi, either as a specific or a varietal one, 

 may eventually be appropriately applied to this form. 



Hab. France. 



M. 1401. The anterior portion of the cranium; from the Upper 



(Fig.) Eocene of Caylux (Tarn-et-Garonne), France. This 



specimen, which is represented in the accompanying 



woodcut (fig. 20), has been described and figured by the 



20. 



Canotherium, sp. The palatal portion of the cranium ; from the 

 Upper Eocene of Caylux. |. 



present writer in the Geol. Mag. dec. 3, vol. ii. pp. 67-68 

 (1885) ; its dimensions are as follows, viz. : 



