28 CARNIVORA. 



of Bach, near Lalbenque (Lot), France. This specimen 

 is precisely similar to the one figured by Filhol in the 

 Ann. Sci. Geol. vol. vii. pi. xxxv. figs. 182, 183, with 

 the exception that the depth of the mandible is still 

 greater in the present specimen, being 0,029 at the 

 interval between pm. 3 and pm. 4. Purchased, 1884. 



M. 1677. Fragment of the right ramus of the mandible, containing 

 the first and second true molars ; from the Upper Eocene of 

 Bach. This specimen agrees precisely with the one figured 

 by Filhol in the plate cited above. Purchased, 1884. 



Hyaenodon vulpinus, P. Gervais '. 



Syn. Hyeenodon exiffuus, P. Gervais (teste Filhol). 

 Pterodon exiguus, P. Gervais. 



This species is readily distinguished from any of the preceding by 

 its greatly inferior size. The species has not hitherto been recorded 

 from the Lower Miocene of Puy-de-D6me. 



Hob. France. 



36766. Fragment of the cranium, containing all the teeth of the 

 right side as far back as the first true molar, and a frag- 

 ment of the right ramus of the mandible, containing the 

 last premolar and the first and second true molars ; from 

 the Lower Miocene of Puy-de-D6me, France 2 . The teeth 

 are unworn and in beautiful preservation : and the speci- 

 men is valuable as showing the upper and lower jaws in 

 association. The specimen is of considerably smaller size 

 than the cranium of H. vulpinum figured by Filhol in the 

 Ann. Sci. Geol. vol. vii. pi. xxxiv. fig. 170 ; but it will 

 be seen, from the figures of three specimens of the man- 

 dible given on the same plate (figs. 167-169), that there 

 is a considerable range of variation in size ; and since the 

 three teeth of the mandible of the present specimen agree 

 precisely with the corresponding teeth of the specimen 

 represented by Filhol in fig. 168, the present specimen 

 may be pretty safely referred to the same species, thus 

 extending its range into the Lower Miocene. The upper 

 teeth agree exactly with those of the specimen No. M. 1678, 

 noticed below. The following dimensions indicate the 



1 Journ. Zool. vol. ii. p. 374 (1873). 



2 The specimen is entered in the Museum Register as Hyceiwdon croiteti, 

 Kaup ; the name being apparently a manuscript one. 



