Eastern pygmy marmoset
| Eastern pygmy marmoset | |
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| Eastern pygmy marmosets in Dudley Zoo, England | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Primates |
| Suborder: | Haplorhini |
| Infraorder: | Simiiformes |
| Family: | Callitrichidae |
| Genus: | Cebuella |
| Species: | C. niveiventris
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| Binomial name | |
| Cebuella niveiventris Lönnberg, 1940
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The eastern pygmy marmoset (Cebuella niveiventris) is a
Physical description
The eastern pygmy marmoset weighs around 119 grams and have a head size ranging from 33.7 to 38.9mm, being one of the smallest New World monkeys.[3][4] In the wild, full grown adult males weigh approximately 110 grams whereas adult females can weigh around 120 grams.[5] All pygmy marmosets share a common attribute where they have a mane of fur covering their ears, arms that are longer than their hind legs, and they have no protocone in their first upper premolar tooth.[4] Due to their specific diet, the eastern pygmy marmoset also has large lower incisors and a strong V-shaped lower jaw.[4] The eastern pygmy marmoset also has claw-like nails which are beneficial for actions such as poking holes in tree bark to obtain food, as well as the claw-like nails allows them to cling vertically to tree trunks.[6]
As different subspecies of the pygmy marmoset have different coloration patterns, the eastern pygmy is more of a white, pale color.[3] The species has whiteish underparts which include their arms and legs, as well as their throat and chest having a more orange to white coloration.[3]
Ecology
Distribution
The eastern pygmy marmoset are small arboreal nonhuman primates that cover a large geographic distribution.[3][7] As it was confirmed by DNA the eastern pygmy marmoset is located primarily south of the Rio Solimões river (Amazon River) covering parts of Peru, Brazil, Equator and Bolivia.[3] The species covers a larger range in Brazil and Peru, present in the Amazonian lowlands and Andean foothills.[7] The home range of this nonhuman primate also stretches a little into northern Bolivia.[7]
Diet
The eastern pygmy marmoset is similar to the general species as they have a specific high-quality, rare food diet.[4] They are considered mainly to be exudativores as well as insectivores.[3] The eastern pygmy marmosets feed primarily on plant exudates which consist of tree sap, tree gum as well as latex from trees and lianas.[5] This consists of a large portion of their diet.[3] They are known at times to also eat arthropods, primarily being insects, and occasionally eat fruits for extra nutrition.[5]
The species, due to their particular diet, has dental as well as nail adaptations in order to gnaw, dig, and cling vertically to trees; these are all behaviors associated with feeding as well as exudate foraging.[8]
References
