The saddle-back tamarins are squirrel-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 Ceboid ...

s from the

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

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 th ...

in the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

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 betw ...

''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, Go ...

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, Go ...

'' 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 omnivorou ...

or Spix's saddle-back tamarin, ('' Leontocebus fuscicollis'') * Lesson's saddle-back tamarin, ('' Leontocebus fuscus'') * Illiger's saddle-back tamarin, ('' Leontocebus illigeri'') * Red-mantled saddle-back tamarin, ('' Leontocebus lagonotus'') * Andean saddle-back tamarin, ('' Leontocebus leucogenys'') * Black-mantled tamarin, ('' Leontocebus nigricollis'') * Geoffroy's saddle-back tamarin, ('' Leontocebus nigrifrons'') * Golden-mantled tamarin or Golden-mantled saddle-back tamarin, ('' Leontocebus tripartitus'') * Weddell's saddle-back tamarin, ('' Leontocebus weddelli'') 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