PETERSON : NEW CARNIVORES FROM MIOCENE OF WESTERN NEBRASKA 2538 
MEASUREMENTS OF METATARSAL I. 
Grontiostslengthiyrchiis. Ae Asie vensties, ESS 4. S49 
Antero-posterior diameter of head 
Transyerse diameter of head 
Transverse diameter of distal trochlea.. 
Metatarsal IT. 
the head of Mt. IL is oblique, slightly concave antero-posteriorly, and rises to a 
As in Daphenus the articular facet for the mesoecuneiform on 
Uy 
high and sharp angle along the fibular border. The 
fibular side has two large facets for the ectocuneiform, 
thus the head of Mt. II extends above those on Mt. I and 
III when articulated in the foot. The plantar tuberosity 
is of considerable size and is located on the fibular angle. 
3etween the plantar tuberosity and the dorsal face there 
is on the tibial face an excavated and rough surface, 
against which lies the head of Mt. I, but there is no true 
articular facet for the latter. The shaft is much shorter 
and lighter than in the corresponding bones in Canis or 
Felis and is in proportion to the rest of the limb perhaps 
more nearly like that of the bears. Distally the bone is 
expanded transversely, the dorsal face of the trochlea be- 
ing spheroidal and the plantar face divided by a prominent — Fra. 51. Dorsal and Fibular 
sarina as in the metacarpals. Views of Right Metatarsal II of 
D. superbus. Nat. size. 
MEASUREMENTS OF METATARSAL II. 
Greatest length. oes 
Antero-posterior diameter of head 
ALANS VOLSS CLAIMEheR Ol EAU st yeck wats. weertssreeecresenceFor cee vere i emere toa 
Metatarsal ILI. — As was observed by Professor Scott in his study of Daphanus 
(/. cp. 356) the relative proportion of Mt. III is greater than in Dinictis, Hoplopho- 
neus or the viverines. It is also considerably longer proportionally than Mt. IT in 
Canis, while actually the bone is much shorter in the genus under description. 
The head has a large antero-posterior diameter, the plantar tuberosity being quite 
large both transversely and vertically, asin Canis. The articular facet for the ecto- 
cuneiform is of large size ; it is quite oblique in position and is convex both antero- 
posteriorly and transversely. On the tibial face the head is deeply excavated, but 
there is no articular facet for Mt. II, excepta slight area on the extreme tibial angle 
