250 MEMOIRS OF THE CARNEGIE MUSEUM 
quite concave in the fore-and-aft direc 
tion. The proximal articulation for the 
navicular ascends rapidly in the plan- 
tar region, due to a heavy process on 
the posterior face which points upward 
and backward. On the fibular face are 
two facets, a large one proximally for 
Fic. 46. Entocuneiform (right side) of D. superbus- the mesocuneiform and a smaller one 
Nat. size. 1, dorsal view ; 2, inferior view ; 3, plantar distally, which articulates with Mt. II. 
view; 4, fibular view ; 5, tibial view. 
MEASUREMENTS OF ENTOCUNEIFORM. 
Greatest antero-posterior diameter 
Greatest transverse diameter... 
Greatest vertical diameter ... 
Mesocuneiform. —'The mesocuneiform has relatively a greater antero-posterior 
and a lesser transverse diameter, especially of the distal face, than is the case in 
Daphenus. Consequently the bone, which is triangular in outline when viewed 
from below, has a longer apex directed 
backward than is seen in the Oligocene 
genus. The facet for the navicular is 
slightly less oblique than in Daphenus, but 
has the same antero-posterior concavity. 
On the tibial face there is a large facet for 
the entocuneiform which is located on the Fic. 47. Mesocuneiform (right side) of D. superbus. 
: a: Nat. size. 1, dorsal view; 2, fibular view ; 3, tibial 
upper portion of the bone and is concave 
view; 4, inferior view ; 5, superior view. 
antero-posteriorly. On the fibular face, 
near the proximal angle, is a facet for the entocuneiform which extends throughout 
the entire fibular face, antero-posteriorly, but is of small vertical diameter and 
corresponds to a facet on the tibial face of the ectocuneiform. Distally the bone 
is taken up by the facet for Mt. IT. 
MEASUREMENTS OF MESOCUNEIFORM. 
Mm 
Greatest antero-posterior diameter .........sessssseessecseesesssesees ennsnerssseensecesesecesertegeananarssneneseecesens 13 
Greatest transverse diameter 9 
9 
Greatest vertical diameter. 
: E i P 
Ectocuneiform. — When the ectocuneiform is compared with that of Dapheenus 
it is at once seen that this bone in Daphawnodon has not increased in size in the 
