95 



that the name mutabilis has the priority and must stand for the 

 species, the type of which will be the original Plesiogale mutabilis ; 

 the name lamandini, if employed at all, should be used in a varietal 

 sense for the form with a large ^~2, figured in the Ann. Soc. Sci. 

 Phys. Nat. Toulouse, 1882, pi. iv. fig. 4. 

 Hob. France. 



M. 1643. Two specimens of part of the right ramus of the mandible, 

 showing the third and fourth premolars, the carnassial, 

 and the alveoli of m72 and the other teeth; from the 

 Upper Eocene of Bach, near Lalbenque (Lot), France. 

 These specimens appear to agree precisely with the form 

 figured by Filhol in the Ann. Sci. Geol. vol. vii. pi. xxv. 

 figs. 112, 113, under the name of Plesiogale mutabilis. 



Purchased, 1884. 



M. 1369. The greater portion of the right ramus of the mandible, 

 containing the canine and all the cheek-teeth except pmH 

 (of which the crown is broken oft 7 ) ; from the Upper Eocene 

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

 appears to agree precisely with the mandible figured by 

 Filhol in the Ann. Sci. Geol. vol. vii. pi. xxv. figs. 110, 111, 

 under the name of Plesiogale mutabilis, and that in the 

 Ann. Soc. Sci. Phys. Nat. Toulouse, 1882, pi. iv. fig. 1, 

 under the name of Palceoprionodon lamandini, var. muta- 

 bilis ; both these specimens differing slightly from the 

 preceding specimens. Purchased, 1884. 



9 

 Palseoprionodon, sp. 



Hab. Europe. 



M. 1370. The greater portion of the left ramus of the mandible, con- 

 taining the canine and all the cheek-teeth ; from the Upper 

 Eocene of Caylux. In this specimen the length of the space 

 occupied by the last four cheek-teeth is the same as in No. 

 M. 1369 ; the interval between pm . 3 and the canine is, how- 

 ever, considerably less, and pm. 2 is smaller. The second 

 true molar is small, and there is a distinct inner cusp to 

 the carnassial. It is not improbable that these differences 

 should be regarded as of specific value. Purchased, 1884. 



M. 1644. Symphysial extremity of the left ramus of the mandible, 

 very similar to the last specimen ; from the Upper Eocene 

 of Bach. Purchased, 1884. 



