. Description of new carnivores from the Miocene of western Nebraska. Carnivora, Fossil; Paleontology; Paleontology. 238 MEMOIRS OF THE CARNEGIE MUSEUM Mc. Ill and the smaller for Mc. IV. In Daphasnus the latter facets are divided in about the same proportions as in the present genus. Measurements of Magnum. Mm. Greatest antero-posterior diameter 20 Transverse diameter of dorsal face 11 Greatest vertical diameter 16 Unciform.—The facet for the cuneiform does not extend so far down on the ulnar angle as is the case in Daphcenus, otherwise I cannot see any difference in the unciform in the two g
. Description of new carnivores from the Miocene of western Nebraska. Carnivora, Fossil; Paleontology; Paleontology. 238 MEMOIRS OF THE CARNEGIE MUSEUM Mc. Ill and the smaller for Mc. IV. In Daphasnus the latter facets are divided in about the same proportions as in the present genus. Measurements of Magnum. Mm. Greatest antero-posterior diameter 20 Transverse diameter of dorsal face 11 Greatest vertical diameter 16 Unciform.—The facet for the cuneiform does not extend so far down on the ulnar angle as is the case in Daphcenus, otherwise I cannot see any difference in the unciform in the two genera. On the dor- sal face the bone has a transverse exca- n.,JL lit H"It vation and lacks the heavy convex ru- gosity for muscular attachments seen in the tiger, nor is the palmar tuberosity so 'ifjSUli well developed ; otherwise the bones in t'"ih ( 1111 the two forms are not greatly dissimilar. From Canis the unciform in Daphoenodon is at once distinguished by the lateral Fig. 34. Unciform (left side) of D. superbm. Nat. ... „ ., „ . » ., .. , , , , . „ , , position of the facet lor the cuneiform, the size. 1, dorsal view ; 2, palmar view; 3, superior view; r 4, ulnar view ; 5, radial view ; 6, inferior view. latter facet being more nearly superior on the bones in the true dogs. The radial face is deeply excavated by a sulcus which corresponds to the one described on the ulnar face of the magnum. Around this sulcus is a large continuous, although ir- regularly shaped, facet for the magnum, which is altogether different from the four separated facets for the magnum in Canis. Immediately above the facet for the magnum there is a second facet, which articulates with the scapho-lunar. The ante- rior portion of this continues into the facet for the magnum in an imperceptible manner, while further back there is a decided ridge separating the two facets. Dis- tally the bone is entirely taken up by the large facets for Mc. IV and Measurements of Unciform. Mm.
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