platyrhini

from The Collaborative International Dictionary of English v.0.48

Platyrhini \Plat`y*rhi"ni\, n. pl. [NL., fr. Gr. ? broad + ?, ?,
   nose.] (Zool.)
   A division of monkeys, including the American species, which
   have a broad nasal septum, thirty-six teeth, and usually a
   prehensile tail. See {Monkey}. [Written also {Platyrrhini}.]
   [1913 Webster]