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White-bellied pygmy marmoset

Callithrix pygmaea nivieventris

White-bellied pygmy marmoset

Pygmy marmosets are New World monkeys, which is a term that describes monkeys from South and Central America.

Pygmy marmosets are the smallest members of the monkey family, at just 13 centimetres long. In fact, a newborn infant is only the size of the head of a toothbrush.

A family group of pygmy marmosets is made up of an adult male and female and their offspring, of varying ages. The adult male and older offspring are responsible for carrying the newborns, while the female is responsible for feeding her young.

Belfast Zoo’s pygmy marmosets can be found in the Western lowland gorilla house, with the largest primates in the world!

Animal class


Diet - Omnivore
Pygmy marmosets eat tree sap and gum, some small invertebrates and fruit.

The smallest living monkey, the average Pygmy marmoset is up to 150 millimetres (mm) long, with a tail of up to 230mm.

Pygmy marmosets live in tropical forests in the upper Amazon basin, in South America.

Conservation status
The IUCN believe that pygmy marmosets are currently under threat of extinction in the wild. They are listed under Appendix II of CITES.

The main threat to pygmy marmosets is the destruction of their habitats.

Current population
Pygmy marmoset numbers are declining but they seem to be able to adapt to less of their natural habitat. This may help prevent a drastic decline in population.

Zoo population
There are around 65 pygmy marmosets living in zoos around the world.