Family Atelidae

Subfamily Pitheciinae

• large procumbent incisors, robust canines

•  slightly prognathic snout and enlarged nasal bones

      a.       Pithecia pithecia (white-faced saki), P. irrorator (bald-faced saki), 

                P. monachus (monk saki), P. albicans (white saki), P. aequatoralis  

                (equatorial saki)

• smallest pitheciine, 2kg

• relatively longer trunk and legs

• best known, with white face, P. pithecia

• primarily leapers

      b.      Chiropotes satanas (black-bearded saki) and C. albinasus (white-

                nosed bearded saki)

• lacks sexual dichromatism

• limbs very similar in length

• arboreal quadrupeds

      c.       Cacajao calvus (bald uakari) and C. melanocephalus (black-

                headed uakaris)

• largest pitheciines with large body and short tail

• move by quadrupedal walking and running

• frugivorous