18 INSECTIVORA.. 



Fraas (' Pauna von Steinheim,' p. 4) referred Blainville's specimens 

 to another genus, under the name of Parasorex socialis. It appears, 

 from a comparison of Gervais's specimens with De Blainville's figures, 

 that the two belong to different genera, the former heing really an 

 Erinaceus. Under these circumstances it appears, on the whole, 

 advisable to apply the name arvernensis to the Erinacem, and to take 

 another specific name for De Blainville's specimens, which are 

 referred below to Plesiosorex. 



27825. The nearly complete left ramus of the mandible, showing 

 (Fig.) all the teeth ; from the Lower Miocene of Cournon (Puy- 

 de-D6me), France. This specimen is the type, and shows 

 all the teeth, which agree precisely with those of Erina- 

 ceus, especially in the small size of the last true molar and 

 of the three teeth in front of pm. 4 ; it is figured by Gervais 

 in the Zool. et Pal. Frangaises, 2nd ed. p. 53, fig. 11. In 

 size and form it is very like the mandible of some of the 

 smaller Asiatic species '. 



Croizet Collection. Purchased, 1848. 



27825 a. Part of the left ramus of the mandible, containing the last 

 premolar and the first true molar ; from Lower Miocene 

 of Cournon. This specimen is figured by Gervais, op. cit. 

 figs. 10, 10 a. Croizet Collection. Purchased, 1848. 



27825 b. Part of the left ramus of the mandible, containing the 

 broken bases of pm. 4 and ^Ti ; from the the Lower Miocene 

 of Cournon. Croizet Collection. Purchased, 1848. 



27825 d. Fragment of the right ramus of the mandible, containing 

 the inner incisor and the last premolar ; from the Lower 

 Miocene of Cournon. 



Croizet Collection. Purchased, 1848. 



27825 C. Part of the left ramus of the mandible, containing the 

 inner incisor, pm. 4, and m . 1 ; from the Lower Miocene 

 of Cournon. Croizet Collection. Purchased, 1848. 



27814. Fragment of the right ramus of a mandible, without teeth, 

 which may belong to the present species ; from the Lower 

 Miocene of Sauvetat (Puy-de-D6me), France. 



Croizet Collection. Purchased, 1848. 



1 E. g. E. microptis, Blyth. Vide Journ. As. Soc. Beng. vol. xlvii. pt. 2, 

 pi. Va (1878). 



