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t 
elevated, the internal more obtuse and directed inwards. The shaft is 
thus sub-triangular in section. The distal extremity is nearly at right 
angles to the axis of the proximal and is much expanded transversely. 
A large part of this expansion is caused by the truncate internal tuberos- 
ity, and by the less prominent external one. The latter is continued in 
a thin ala which only sinks into the shaft at its middle. The condyles 
are small, the external the most prominent. There isa shallow olecranar 
fossa, and no coronoid, and hence no supercondylar foramen. There is 
an arterial foramen above the internal tuberosity. 
The wing is compressed, and contracts rapidly to the extremity. The 
olecranon is broad and obtuse and the humeral cotylus oblique to the 
long axis. The coronoid process is low. The shaft is remarkably 
curved from right to left (inwards). The radius has a discoidal head 
with central depression, and it was evidently capable of complete rota- 
tion. It exhibits a tuberosity and slight flexure below the head. The 
distal extremity has a horizontal triangular section with the apex inter- 
nal and truncate; the shaft near it is quite flat. 
The left dliéwm is obspatulate and flat, widest at the convex crest, and 
slightly concave on the outer side. It is rather thin, and the impression 
for the sacral diapophyses is elongate. The inferior border thickens 
gradually to the acetabulum; the superior is excised so as to form an 
open concavity. 
The right femur is remarkable for its length. Its shaft is flattened 
from before backwards, and without flexure. The great trochanter is 
large, and embraces a deep in-looking fossa. There is a flat tuberosity 
looking outwards just below, and the little trochanter is a little below 
opposite to it. The condyles are sub-similar in size, the trochlear sur- 
face wide, but not flat, and the inner border thickened and considerably 
elevated. The femur is 1.75 times as long as the humerus; it was 
scarcely longer, though a small piece is wanting from the shaft of our 
specimen. : 
Remarks. Having described the more important parts of the skeleton 
preserved, I now proceed to consider its systematic position, and the 
order to which it should be referred. 
The first impression derived from the appearance of the lower jaw and 
dentition, and from the humerus, is that of an ally of the coati (Vasua). 
The humerus indeed is almost a fac-simile of that of Nasua, the only 
difference being a slight outward direction of the axis of the head. The 
same bone resembles also that of many marsupials, but the flat ilium, 
elevated position of dental foramen, and absence of much inflection of 
the angle of the lower jaw, etc., render affinity with that group highly 
improbable. The length of the femur indicates that the knee was 
entirely free from the body as in the quadrumana, constituting a 
marked distinction from anything known in the Carnivora, including 
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