MUSTELID&. hi 

22 (0. C.). The left ramus of the mandible, wanting the incisors, 
canine, and m.2; from a cavern in Sundwig, Westphalia. 
Sémmering Collection. Purchased, 1827. 
ae Mustela, sp. 
Hab. India. 
15914. Fragment of the left ramus of the mandible, containing the 
(Fig.)  carnassial and the broken pm. 4; from the Pliocene of the 
Siwalik Hills, India. In this specimen, which is repre- 
sented in the accompanying woodcut (fig. 25), the form of 

Mustela, sp.—Fragment of the left ramus of the mandible; from the 
Siwalik Hills. +. 
the carnassial is precisely that of the corresponding tooth 
of Mustela proper, so that it may be safely referred to that 
genus. In size the two remaining teeth, as well as the 
ramus itself, agree almost exactly with the mandible of the 
living Indian M. flavigula ; but the carnassial of the fossil 
is readily distinguished by the larger size of the inner 
cusp, and the greater development of the talon, which is 
relatively longer than in the existing species, being wider 
than any other part of the tooth. The inner portion of 
the talon has a distinct rim, which is wanting in the 
existing species, thus causing the talon to be slightly basin- 
shaped. These differences indicate that the Siwalik form 
is, in all probability, specifically distinct from VM. flavigula. 
In the form of the carnassial and in general size the speci- 
men is very close to M. martes; but the last premolar is 
considerably shorter than in that species. No other living 
species appears to come nearer to the fossil. 
Turning to fossil species, the Siwalik jaw is distin- 
guished from that of the Pikermi M. penteleci, Gaudry ', 
+ Animaux fossiles et Géologie de l’Attique, p. 42, pl. vi. figs. 3, 4. 
N 
