Anatomy of Vertebrate Animals / The Classification and Organization of the Mammalia
The Catarrhini
3. The Catarrhini.-The Simiadae 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. 2.2/2.2 c. 1.1/1.1 pm. 2.2/2.2 m. 3.3/3.3 and
in being inhabitants of the Old World. They fall into two very distinct
groups, the Cynomorpha and the Anthropomorpha.