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