ON SO^rK NE\Y AND LITTLE KNOWN CREODONTS. 
1<J2 
tni]H'ziuni or trapezoid. (3) The lunar loaves a proximal facet of the magnum un- 
touched, corresponding to that on the scaphoid ; the two, however, cannot possibly 
come in contact. (4) When the carpal bones are put in their natural position, a va- 
cancv is seen to occur betw^een the scaphoid above, the lunar and trapezoid at the 
sides, and the magnum below. This is exactly the position which the central should 
occupy, and by no other assumption can the relations of the other carpals be ex- 
jdained. 
The unciform is the largest of the elements. The proximal surface is mostly oc- 
cupied by the cuneiform, but rising aboA'e this is a narrow, convex, and oblique facet 
for the lunar. A considerable facet for metacarpal III is to be seen below the magnum, 
and distally are two broad and somewhat concave surfaces for metacarpals IV and V. 
The metacarpals, as Professor Cope has remarked, resemble those of the hv®na, 
tliougli they are shorter and more perfectly interlocked ; II and lY are short and 
stout. III and IV longer and much more slender. No. II overlaps III and sends a 
strong process to the magnum. III overlaps IV and sends a similar process to the un- 
ciform. No. IV has no such process, but on its external side is a cavity which re- 
ceives a i)rojection from V. Professor Cope’s figure of the metacarpals of M. lanlus 
is incorrectly drawn. He has kindly allowed me to examine his type specimen and it 
agr«><-s with that here described. The metacarpals of Paclujccna are shorter, stouter, 
and not .so much interlocked as in Mesomjx ; indeed the latter shows a degree of inter- 
IcK-king which is more pronounced than in any modern carnivore except the cats. 
'fhe i.roximal phalatajes of the lateral digits are stout, depressed and curved, those 
of the iiK'dian digits long and more slender; the same statement holds good of the 
stvond row. In both .scries the distal articular surface is reflected on the upper face 
of the lH)ne, more so than in the hyaena. The ungual phalanges, as long ago pointed 
out by Profe.s.sor Cope, are very peculiar and remotely like those of the seals. They 
are nither more like small hoofs than claws, are broad, depressed and deeply cleft at 
the end. A wedge-shaped thickening passes along the under surflice giving the bone 
greater stmigth. 
'I HE IIi.VD Limb. 'The pelvis is most like that of the bears; the ilium and isch- 
ium are in the same straight line and of about equal length. The former is stout and 
somewhat everted anteriorly, with concave iliac sm-face and a tubercle representing 
he anterior inferior spine. The ischium is a stout trihedral rod expanding po.sterior- 
into a very large but not thick tuberosity. The pubis is short and heavy, meeting its , 
< ow in a ong simphysis. The obturator foramen is a long narrow oval. The acet- 
abulum is rather small. J-ncacet 
tl.o Except for the presence of 
™,hcr 1 "n’ great trUantor i, 
rather small and has a rngose edge ; the shaft is rounded and slender. >• The rotukr 
groove ts narmw and elevated, the inner margin a little higher. The condyles are 
