Family Callitrichidae

Subfamily Callitrichinae

a.      Callimico goeldii (Goeldi’s monkey)

• primitive dentition: full set of three molars
• single births
• no sexual dimorphism
• digital claws except for great toe (clinging)
• move mainly by leaping
• males largely responsible for child care
  
  b.      Genus Saquinus and Genus Leontopithecus (Tamarins)

• dental formula, (2132/2132)
• array of pelage color patterns and elaborations on facial hair
• small with long trunks, legs, and tail
• twin births
• located mainly in amazon regions

  c.       Saquinus oedipus (cotton-topped tamarin)

• quadrupedal walking and running; occasional leaping
• single breeding female

d.      Saquinus midas (golden-handed tamarin)

• quadrupedal walking and running
• frugivorous

  e.       Saquinus fuscicollis (saddle-back tamarin)

• leaping between vertical supports
• polyandrous[1]

f.        Saquinus labiatus (white-lipped tamarin)

• quadrupedal running with short leaps
• similar habitat to S.fruscicollis  (sympatry[2])           

  g.       Saquinus imperator (emperor tamarin)

• named for Franz Joseph, emperor of Austria because of his weeping moustache
• twin offspring at beginning of rainy season
• share some territories with S. fuscicollis

  h.      Saquinus mystax (moustached tamarin)

• polyandrous
• social organization like communal breeding system

  i.    Leontopithecus rosalia (lion tamarin), L. chrysomelas (golden-headed lion tamarin),
  and L. chrysopygus (golden-rumped lion tamarin)       

• largest callitrichines
• most endangered primates
• located in southeast Brazil
• quadrupedal
• feed on range of invertebrates, small vertebrates, and fruit; do not feed on exudates[3]

j.       Callithrix argentata (silvery marmoset), C. humeralifer (tassel-eared marmoset),
C. jacchus (common marmoset), C. aurita (buffy tufted-ear marmoset), C. flaviceps
(buffy-headed marmoset), C. geoffroyi (white-faced marmoset), C. penicillata  (black tufted-ear marmoset)

• specialized dentition; enlarged incisors with thin layer of enamel
• quadrupedal walking, running, and leaping
• use clinging posture for eating exudates
• monogamous groups only

  k.      Cebuella pygmaea (pygmy marmoset)

• smallest marmoset, platyrrhine, and anthropoid
• eat exudates 67% of time
• utilize clinging postures for eating and vertical leaping
• monogamous with small groups of one male and female
• dizygotic twins