OREODONTA. 
125 
tubercle which bounds a narrow basin on its inner side, and is bounded by 
a slight cingulum on the outer. This tooth is about two-thirds the length 
of the sectorial. 
The dental foramen is large, and its inferior border marks the middle 
of the depth of the ramus. The ramus, while not exceeding in length that 
of the large varieties of the Red Fox, is deeper. No teeth certainly 
referrible to the superior series were found. 
Accompanying the jaw above described, I found a number of other 
bones of the skeleton, which I have no reason to doubt belonged to the 
same animal. They are so fragmentary that little more than measurements 
can be given. The distal end of the radius is about as large as that of a 
domestic Cat. Its carpal surface is narrow and transverse, and slightl}^ 
concave in a transverse direction. The external tuberosity is a ridge of 
twice the length of that of the Cat, and is decurved. The superior tendinous 
groove is well marked; a smooth oblique face descends from it to the external 
border of the bone. The ilium is a stout bone, more massive than that of 
a Cat, and is distinguished for a large inferior anterior “spinous process,” 
of which only a rudiment exists in the Dog and the Bears, and still less in 
the genus Fells. The astragalar face of the tibia is uninterrupted by grooves 
or ridges, and the inner border is probably produced as in Oxycena.^ etc., 
though broken off in the specimen. There is a concavity on the outer 
margin of the neck of the astragalus to receive the extremity of the fibula. 
The astragalus is about as large as that of a Cat, and, as above remarked, is 
not grooved above, but presents two superior facets, of which the inner 
and superior is slightly concave. The interior side of the astragalus is 
vertical, and is mainly occupied by an extensive internal malleolar facet. 
The inferior aspect of the astragalus presents the usual interior convex and 
exterior concave longitudinal facets for the calcaneum. The distal extremity 
of a metapodial bone has strong ligamentous fossae on each side, and keel 
on the middle of the articular face below. An ungual phalange is com¬ 
pressed, and has a strong inferior tuberosity, and no basal sheath nor trace 
of one. The cotylus is not divided by a keel, and there are no large basal 
foramina. 
