Callitrichidae -- Mico was, until recently, within Callithrix.

Callimico goeldii -- Goeldi's Marmoset -- [ *zorg | *szg | *ctp | *baha | *lisb | *vzoo ]

Mico chrysoleucus -- Golden-white Tassel-ear Marmoset -- [ *wisc | *CI ]
Mico leucippe -- Golden-white Bare-ear Marmoset -- [ *CI ]
Mico marcai -- Marca's Marmoset -- [ *CI ]
Mico nigriceps -- Black-headed Marmoset -- [ wisc | *CI ]

Sixteen species of Callithrix and Cebuella, shown in beutiful thumbnail illustrations by the artist Stephen D. Nash, display their distribution along tributaries of the Amazon system on this page at Conservation International. *Callithrix acariensis -- Acari Marmoset -- [ *CI | *acom | *fox ] Callithrix argentata -- Silvery Marmoset -- [ *wisc | *braz | *CI | *lisb | *vzoo ] Callithrix aurita -- Buffy Tufted-ear Marmoset -- [ wisc | ummz | *braz ] *Callithrix coimbrai -- n. sp. Brazil 1999 Callithrix emiliae -- Snethlage's Marmoset -- [ wisc | *CI ]

Callithrix flaviceps -- White-eared or Buffy-headed Marmoset -- [ wisc | *wpin1 | *wpin2 ]
Callithrix geoffroyi -- Geoffroy's Tufted-ear Marmoset -- [ *wisc | *lpz | *wpin | *vzoo ]
Callithrix humeralifer -- Sanarem or B-&-W Tassel-ear Marmoset -- [ wisc | *CI | *wpin ]
*Callithrix humilis -- Dwarf Marmoset -- [ *CI ]
Callithrix intermedia -- Tassel-ear Marmoset -- [ *CI ]
Callithrix jacchus -- Common Marmoset -- [ ummz | *ussr | *umo | *theo | *ecob ]
Callithrix kuhli -- Wied's Marmoset -- [ *wisc | *ufsc | *ross ]
*Callithrix manicorensis -- Manicore Marmoset -- [ *CI | *acom ]
Callithrix mauesi -- Rio Maues Marmoset -- [ wisc | *CI ]
Callithrix melanura -- Black-tailed Marmoset -- [ wisc | *CI | *braz ]
Callithrix penicillata -- White-headed or Black Tufted-ear Marmoset -- [ wisc | *braz | *wpin | *lisb ]
Callithrix satarei -- Sataré Maues Marmoset[ *CI | *pbs ]

Cebuella pygmaea (Callithrix) -- Pygmy Marmoset -- [ *wisc | *lpzoo | *dupc | *CI | *ctp | *apa ]

C. p. niveiventris -- Pygmy Marmoset -- [ *CI | *urfr ]

Leontopithecus caissara -- Black-faced/headed Lion Tamarin -- [ wisc | *aniz | *kids | *two ]
Leontopithecus chrysomelas -- Golden-headed Lion Tamarin -- [ *wisc | *dupc | *lpzoo | *apa ]
Leontopithecus chrysopygus -- Golden-rumped Lion Tamarin -- [ *wisc | *braz | *kids ]
Leontopithecus rosalia -- Golden Lion Tamarin -- [ *wisc | *dupc | *uhzoo | *apa | *vzoo ]

Saguinus bicolor -- Bare-faced or Pied Tamarin -- [ wisc | *braz | *braz | *mana ]
Saguinus fuscicollis -- Saddle-back Tamarin -- [ wisc | ummz | *umo | *rcf | *peru | *czen ]

S. f. acrensis --
S. f. avilapiresi -- Avila Pires’ Saddleback Tamarin -- [ *urfr ]
S. f. melanoleucus -- [ *pgal ]
S. f. weddelli -- [ *pgal ]
Saguinus geoffroyi -- Rufous-naped or Geoffroy's Tamarin -- [ wisc | *fsu | *wpin | *prsp ]
Saguinus imperator -- Emperor Tamarin -- [ *wisc | *ummz | *lpzoo | *dupc | *ctp | *Bloom ]
Saguinus inustus -- Mottle-face Tamarin -- [ wisc ]
Saguinus labiatus -- Red-bellied Moustached Tamarin -- [ wisc | *wpin1 | *wpin2 | *peru ]
Saguinus leucopus -- White-footed Tamarin -- [ wisc | *wpin ]
Saguinus midas (S. tamarin) -- Red-handed/footed Tamarin -- [ *wisc | *wpin | *iwok | *peru | *ozoo ]
Saguinus mystax -- Spix's or Black-chested Moustached Tamarin -- [ *wisc | *braz | *peru ]
S. m. pileatus -- Pileated Tamarin -- [ *wpin | *urfr ]
Saguinus nigricollis -- Black-and-red or Black-mantle Tamarin -- [ wisc | *wpin | *peru ]
S. n. hernandezi -- Hernández-Camacho's Black Mantle Tamarin
Saguinus oedipus -- Cotton-top Tamarin -- [ *Knight | *braz | *uhzoo | *lisb | *uaf ]
Saguinus tripartitus -- Golden-mantle Saddle-back Tamarin -- [ wisc | *nyu | *peru ]

Cebidae

Alouattinae Alouatta belzebul -- Black-and-Red Howler -- [ wisc | *aniz | *para | *braz ] A. b. ululata -- Red-handed Howler Alouatta caraya -- Black Howler -- [ *wisc | *cfz | *uhzoo | *braz | *braz | *vzoo | *czen | *pcom | *pgal (juv. f.) ] Alouatta coibensis -- Coiba Island Howler -- [ wisc ] A. c. trabeata -- Azuero Howler

Alouatta fusca (inc. * Guariba) -- Brown Howler -- [ wisc | *dutch | *wpin | *aniz | *braz ]
A. f. clamitans -- Southern Brown Howler
Alouatta palliata -- Mantled Howler -- [ wisc | *fsu | *wpin | *prsp ]
A. p. mexicana -- Mexican Howler
Alouatta pigra -- Guatemalan Howler -- [ wisc | *dupc ]
Alouatta sara --
Alouatta seniculus -- Red Howler -- [ *wisc | *braz | *dutch | *urfr | *braz | *iwok (shown above)]
A. s. arctoidea --
A. s. insularis -- Trinidad Howler -- [ *dupc ]

Aotinae -- (Aotus are also called Night Monkeys)

This classification is disputed. Aotus used to contain 1 species with 10 subspecies. In 1983 all were elevated to separate species, based on genetic evidence. Only two forms are readily recognizable -- Gray-necked and Red-necked (shown here). Some websites have the photos confused when no distinction between forms is intended.

Northern Gray-necked Group -- [ *dupc ]
Aotus brumbacki -- Brumback's Owl Monkey -- [ wisc | *wpin ]
Aotus hershkovitzi -- Hershkovitz's Owl Monkey -- [ wisc ]
Aotus lemurinus -- Lemurine Owl Monkey -- [ wisc | ummz | *prsp | *fega ]
    A. l. griseimembra -- Grey-legged Owl Monkey -- [ *psic ]
Aotus trivirgatus -- Northern Gray-necked Owl Monkey -- [ *wisc | *ummz | *uhzoo | *wpin ]
    A. t. bipunctatus --
Aotus vociferans -- Spix's Owl Monkey -- [ wisc | *nyu ]

Southern Red-necked Group -- [ *peru ]
Aotus azarae -- Southern Red-necked Owl Monkey -- [ wisc | ummz | *umo (shown at left) ]

    A. a. boliviensis -- [ *wpin ]
Aotus infulatus -- Kuhl's Owl Monkey -- [ wisc ]
Aotus miconax -- Andean Owl Monkey -- [ wisc ]
Aotus nancymae -- Peruvian Red-necked Owl Monkey -- [ wisc | *psic ]
Aotus nigriceps -- Black-headed Owl Monkey -- [ wisc | *ethn ]

Atelinae -- Some authors consider all forms of Ateles to be within a single species.

Brachyteles arachnoides -- Southern Muriqui -- [ wisc | ummz | *dutch | *braz | *josé ]
Brachyteles hypoxanthus -- Northern Muriqui -- [ *smh | *kids ]

Lagothrix flavicauda (Oreonax) -- Yellow-tailed Woolly Monkey -- [ wisc | *wpin | *fr ]
Lagothrix lagotricha -- Common or Humboldt's Woolly Monkey -- [ *wisc | *braz | *dupc ]

L. l. cana -- Geoffroy's Woolly Monkey -- [ *wpin | *urfr (juv.) | *urfr ]
*L. l. lugens -- Colombian Woolly Monkey
*L. l. poeppigii -- Lowland Woolly Monkey -- [ nyu ]

Ateles belzebuth -- Long-haired Spider Monkey -- [ wisc | *aniz | *nyu | *peru (see below) ]
A. b. brunneus -- Brown Spider Monkey
*A. b. hybridus -- Variegated Spider Monkey -- [ *peru (see below) ]
Ateles chamek -- Black-faced Spider Monkey -- [ *braz | *peru ]
Ateles fusciceps -- Brown-headed Spider Monkey -- [ wisc | *vzoo ]
A. f. robustus -- Columbian Black Spider Monkey -- [ *dupc ]
Ateles geoffroyi -- Black-handed Spider Monkey -- [ *wisc | *fsu | *acg | *dupc | *prsp | *vzoo ]
A. g. azurensis -- Azuero Spider Monkey
A. g. frontatus -- Black-browed Spider Monkey
A. g. grisescens -- Hooded Spider Monkey
A. g. ornatus -- Ornate Spider Monkey
A. g. panamensis -- Panama Spider Monkey -- [ *wpin ]
A. g. vellerosus --
A. g. yucatanensis -- Yucatán Spider Monkey
Ateles marginatus -- White-whiskered Spider Monkey -- [ *wpin ]
Ateles paniscus -- Black Spider Monkey -- [ wisc | *szg | *braz | *iwok | *aniz ]