hich exactly coincide with this
suite, and this suite so remarkably coincides through the different
stages of age, one with another, that no doubt can exist of the
Simia morio being a distinct species. The different character of the
skull, its small size and small teeth, put the matter beyond doubt,
and completely establish Mr. Owen's acute and triumphant argument,
drawn from a single specimen.

The third distinction of the skulls is, that the ridges rising from the
frontal bones do not meet, but converge toward the top of the head,
and again diverge toward the posterior portion of the skull. These
ridges are less elevated than in the first-mentioned skulls, but the
size of the adult skulls is equal, and both present specimens of aged
animals. For a long time I was inclined to think the skulls with the
double ridge were the females of the animals with the single and more
prominent ridge; but No. 1 (already described as killed by myself)
will show that the double ridge belongs to an adult and not young
male animal, and that it belongs to the Simia Wurmbii with the huge
callosities. The distinction therefore cannot be a distinction of
sex, unless we suppose the skulls with the greater development of
the single ridge to belong to the female, which is improbable in the
highest degree. The skulls with the double and less elevated ridges
belong, as proved by No. 1, to the Simia Wurmbii; and I am of opinion
the single and higher ridge must be referred to another and distinct
species, unless we can account for this difference on the score of
age. This, I conceive, will be found impossible, as Nos. 7 and 20
are specimens similar to No. 1, with the double and less elevated
ridges decidedly old, and Nos. 4 and 5 are specimens of the single
high ridge, likewise decidedly old.

These three characters in the skulls coincide with the native
statements of there being three distinct species in Borneo, and this
third Borneon species may probably be found to be the Simia Abelii, or
Sumatran ourang. This probability is strengthened by the adult female
on her way home: her color is dark brown, with black face and hands;
and in color of hair, contour, and expression, she differs from the
male ourangs with the callosities to a degree that makes me doubt her
being the female of the same species. I offer you these remarks for
fear of accident; but should the specimens, living and dead, arrive
in safety, they will give a fresh impetus to the i