ON SOME NEW AND LITTLE KNOAVN CREODONTS. l(i;] 
rather narrow, the inner with less transverse and antero-posterior extent, and separated 
by a wide dtx'p frroove. The patella is narrow, thick and truncate at one end.” — 
(CoiK‘). 
1 he tUna is in size and shape like that of the hysena, but is considerably longer 
than tlie mdiiis. Tlie femoral faces are separated by a prominent spine. The cnemial 
crest is heavy and conspicuous, extending far down the shaft. Above the shaft is 
large and ot trihedral section, below more slender and rounded. The distal end 
shows a heavy internal malleolus and two quite deep astragalar facets separated by a 
low but distinct ridg(>. This is quite as in the digitigrade Carnivora and quite difter- 
ent from the ordinary creodonts in which the astragalar face is nearly flat. 
'\'\\v Jihula is very slender. Its proximal end is applied to the under surface of a 
projection of the tibia; distally it expands into a very large external malleolus. 
Tin? tarmiit. The aj<tragahw is well known from Professor Cope’s description. 
It is remarkable l()r the deeply grooved trochlea and the articulation with the cuboid, 
which, as ^Ir. \A'ortman has shown, is approximated in some of the Arctoidea. The 
neck is long, the navicular face narrow and strongly convex. As a whole the bone is 
\-ery different from that of' the Creodonta ordinarily, and most like that of the digiti- 
grade C'arnivora. The same is true of the calcaneum, which is long and strong. The 
iqqK'r condyle is prominent and sharply rounded, the sustentaculum large, and is re- 
moved further from the distal end than in the Arctoidea. The distal end has two 
articular faces, a broad one for the cuboid, and a narrow one on the inner edge for the 
astragalus, giving three distinct articidations with that bone, a peculiarity which I 
have not found in any carnivore. The calcaneum and astragalus of Padiycena are in 
essentials like; tho.se of Memnyx, though with some minor differences. The cuboid is 
very long and heavy. At an acute angle with the broad calcaneal facet is a narrow 
astragalar one. Distally the facets for metatarsals IV and V may be distinguished, 
that for the latter.is very small. On the internal face of the cuboid is a projection 
which passes Ix'tween the navicular and external cuneiform. The nm'icuiar is a 
narrow and shallow bone, with its astragalar facet concave in both directions. In 
verti(-al height it is -scarcely more than that of the cuboid. Distally throe small 
facets for the cuneiforms are visible. The external cuneiform is very high and nar- 
row, articulating with the navicular by a small rounded surface and with the ledge of 
the cuboid. The middle cuneiform is much smaller than the external. A small con- 
vex head fits into a depression in the navicular, and distally there is a narrow wedge- 
sha|X'd surface for mctatansal II. 
The internal cuneiform is missing, but the navicular facet shows it to have 
l)ccn \cr\ small. It could not have supported a functional digit. 
The metatarsals are longer and much more slender than the metacai-pals, but arc 
arranged in much the same way. III and IV longer, II and V shorter. The inter- 
locking is but slight, II rising above the level of the other three on account of the 
23 . JOCK. A. X. 8. PHII.A., VOL. IX. 
