3. The Catarrhini.
of this division present
a great range of variation in most respects, but they agree in
having the partition between the nostrils narrower than in the Platyrrhini;
in possessing a bony meatus auditorius; in the
dental formula i.
in being inhabitants of the Old World. They fall into two very distinct
groups, the Cynomorpha
and the Anthropomorpha.