The saddle-back tamarins are

squirrel Squirrels are members of the family Sciuridae, a family that includes small or medium-size rodents. The squirrel family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrels. Squ ...

-sized

New World monkey New World monkeys are the five families of primates that are found in the tropical regions of Mexico, Central and South America: Callitrichidae, Cebidae, Aotidae, Pitheciidae, and Atelidae. The five families are ranked together as the Ceboidea ( ...

s from the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Callitrichidae The Callitrichidae (also called Arctopitheci or Hapalidae) are a family of New World monkeys, including marmosets, tamarins, and lion tamarins. At times, this group of animals has been regarded as a subfamily, called the Callitrichinae, of the fa ...

in the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

subgenus In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between t ...

''Leontocebus''. They were split from the

tamarin The tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus ''Saguinus''. They are the first offshoot in the Callitrichidae tree, and therefore are the sister group of a clade formed by the lion tamarins, Goel ...

genus ''

Saguinus The tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus ''Saguinus''. They are the first offshoot in the Callitrichidae tree, and therefore are the sister group of a clade formed by the lion tamarins, Goeld ...

'' based on genetic data and on the fact that saddle-back tamarins are sympatric with members of ''Saguinus'' to a greater extent than would be expected from two members of the same genus. However, this argument can be circular, as several other mammals show sympatry among congeneric species, such as armadillos (genus ''Dasypus''), spotted cats (genus ''Leopardus''), and fruit-eating bats (genus ''Artibeus''). Some authors still consider ''Leontocebus'' to be a

of ''Saguinus''. Species include: *

Cruz Lima's saddle-back tamarin Cruz Lima's saddle-back tamarin (''Leontocebus cruzlimai'') is a species of saddle-back tamarin, a type of small monkey from South America. Cruz Lima's saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, ' ...

, ('' Leontocebus cruzlimai'') *

Brown-mantled tamarin The brown-mantled tamarin (''Leontocebus fuscicollis''), also known as Spix's saddle-back tamarin, is a species of saddle-back tamarin. This New World monkey is found in the Southern American countries of Bolivia, Brazil and Peru. This omnivorous ...

or Spix's saddle-back tamarin, (''

Leontocebus fuscicollis The saddle-back tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus or subgenus ''Leontocebus''. They were split from the tamarin genus ''Saguinus'' based on genetic data and on the fact that saddle-back ta ...

'') *

Lesson's saddle-back tamarin Lesson's saddle-back tamarin (''Leontocebus fuscus'') is a species of saddle-back tamarin, a type of small monkey from South America. Lesson's saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, ''L. fus ...

, (''

Leontocebus fuscus The saddle-back tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus or subgenus ''Leontocebus''. They were split from the tamarin genus ''Saguinus'' based on genetic data and on the fact that saddle-back ta ...

'') *

Illiger's saddle-back tamarin Illiger's saddle-back tamarin (''Leontocebus illigeri'') is a species of saddle-back tamarin, a type of small monkey from South America. Illiger's saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, ''L. f ...

, (''

Leontocebus illigeri The saddle-back tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus or subgenus ''Leontocebus''. They were split from the tamarin genus ''Saguinus'' based on genetic data and on the fact that saddle-back ta ...

'') *

Red-mantled saddle-back tamarin The red-mantled saddle-back tamarin (''Leontocebus lagonotus'') is a species of saddle-back tamarin, a type of small monkey from South America. The red-mantled saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled t ...

, (''

Leontocebus lagonotus The saddle-back tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus or subgenus ''Leontocebus''. They were split from the tamarin genus ''Saguinus'' based on genetic data and on the fact that saddle-back ta ...

'') *

Andean saddle-back tamarin The Andean saddle-back tamarin (''Leontocebus leucogenys'') is a species of saddle-back tamarin, a type of small monkey from South America. The Andean saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, ''L ...

, (''

Leontocebus leucogenys The saddle-back tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus or subgenus ''Leontocebus''. They were split from the tamarin genus ''Saguinus'' based on genetic data and on the fact that saddle-back ta ...

'') *

Black-mantled tamarin The black-mantled tamarin, ''Leontocebus nigricollis'', is a species of saddle-back tamarin from the northwestern Amazon Amazon most often refers to: * Amazons, a tribe of female warriors in Greek mythology * Amazon rainforest, a rainfores ...

, (''

Leontocebus nigricollis The saddle-back tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus or subgenus ''Leontocebus''. They were split from the tamarin genus ''Saguinus'' based on genetic data and on the fact that saddle-back ta ...

'') *

Geoffroy's saddle-back tamarin Geoffroy's saddle-back tamarin (''Leontocebus nigrifrons'') is a species of saddle-back tamarin, a type of small monkey from South America. Geoffroy's saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, ...

, (''

Leontocebus nigrifrons The saddle-back tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus or subgenus ''Leontocebus''. They were split from the tamarin genus ''Saguinus'' based on genetic data and on the fact that saddle-back ta ...

'') *

Golden-mantled tamarin The golden-mantled tamarin (''Leontocebus tripartitus'') is a tamarin species from South America. It is found in Ecuador and Peru, specifically in the upper Amazon (lowland), east of the Andes in Ecuador, and Northeast Peru; between the Rio Cura ...

or Golden-mantled saddle-back tamarin, (''

Leontocebus tripartitus The golden-mantled tamarin (''Leontocebus tripartitus'') is a tamarin species from South America. It is found in Ecuador and Peru, specifically in the upper Amazon (lowland), east of the Andes in Ecuador, and Northeast Peru; between the Rio Cura ...

'') *

Weddell's saddle-back tamarin Weddell's saddle-back tamarin (''Leontocebus weddelli'') is a species of saddle-back tamarin, a type of small monkey from South America. Weddell's saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, ''L. ...

, (''

Leontocebus weddelli The saddle-back tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus or subgenus ''Leontocebus''. They were split from the tamarin genus ''Saguinus'' based on genetic data and on the fact that saddle-back ta ...

'') In some locations saddle-back tamarins live sympatrically with tamarins of the genus ''Sanguinus'', but the saddle-back tamarins typically occupy lower strata of the forest than do the ''Sanguinus'' species. Saddle-back tamarins have longer and narrower hands than ''Sanguinus'' species, possibly adaption to differing foraging behavior, as saddle-back tamarins are more likely to search for insects that are hidden in knotholes, crevices,

bromeliad The Bromeliaceae (the bromeliads) are a family of monocot flowering plants of about 80 genera and 3700 known species, native mainly to the tropical Americas, with several species found in the American subtropics and one in tropical west Africa, ...

tanks and leaf litter, while ''Sanguinus'' species are more likely to forage for insects that are exposed on surfaces such as leaves or branches.

References

{{Taxonbar, from=Q25384537 Callitrichidae Primates of South America Leontocebus