563

If the bone from New Zealand be compared with the
femur of the Camel or the Llama, as great differences
present themselves as in the human femur : the
single linea aspera on the middle of the posterior surface
of the bone, and the perforation of the medullary artery,
upon or near that ridge, forbid an approximation
of then lay [illegible] to, with the fossil.

The femur of the Kangaroo is at once distinguished
by the longitudinal tuberosity developed on the mid-
dle of the posterior part of the shaft.

The femur of the Dog, independently of its inferiority
in size in the largest specimens of this quadruped,
differs from the fossil in the absence of the anterior
ridge, & in the presence of the medullary canal
near the middle of the posterior part of the shaft.
In order that no reasonable ground might remain
for doubting the accuracy of the conclusion to which
I have arrived in regard to the above described
bone. I have compared it with the long bones of
^other^ mammalia approaching it in size, notwith-
standing the improbability of their ever having
found their way to the Islands of New Zealand.
A section of the shaft of a femur of the "Grizly Bear",
and of other large species of Ursus corresponding
in length & thickness with the fossil, does not
give the expansion of both extremities, & is moreover
flatter [illegible] posteriorly, the same difference
is presented in the femur of the Lion & other
large species of Felis. The femora of both the
two last cited genera of mammalia are
characterized by the aperture of the medullary artery
at the middle of the posterior part of the shaft.
The femur of the Ouran outang differ as much
as any of the preceding mammalia from the
fossil.

The difference between the fossil & the humeri