Geoffrey’s Tufted-Ear Marmoset

The Geoffrey’s Tufted-Ear Marmoset (Callithrix geoffroyi) is a small arboreal primate mammal in the Callitrichidae family of monkeys. It is also known as the White-Headed Marmoset. It is closely related to the Goeldi’s Monkey, also known as the Goeldi’s Marmoset (Callimico goeldii).

The Geoffrey’s Tufted-Ear Marmoset has long grey, black, and russet-brown-to-orange fur. It has white fur surrounding its face. Its face is small, with bare pink skin and small brownish-orange eyes. It has claws, not nails. It has a long tail.

Geoffrey’s Tufted-Ear Marmoset

It grows to about 20 centimetres (8 inches) long. 

Marmosets are native to South America, in countries such as Bolivia, Brazil, Colombia, Ecuador, Paraguay, and Peru. However, the Geoffrey’s Tufted-Ear Marmoset is endemic to Brazil.

It is arboreal, living in trees. It prefers to live in the upper canopy of tropical forests.

The Geoffrey’s Tufted-Ear Marmoset feeds on insects, fruit, and leaves. It also uses its long, lower incisor teeth to chew holes in tree trunks to feed on the gum or sap inside.  

It is a social animal, living in groups of 3-15 individuals. 

The female is pregnant for about 150 days, before giving birth to 1-2 young. Many individuals take care of the young. This is called allo-parenting. 

Geoffrey’s Tufted-Ear Marmoset
Geoffrey’s Tufted-Ear Marmoset
Geoffrey’s Tufted-Ear Marmoset
Geoffrey’s Tufted-Ear Marmoset
Geoffrey’s Tufted-Ear Marmoset
Geoffroy’s Tufted-Ear Marmoset

Photographer: Martina Nicolls

Martina Nicolls: SIMILAR BUT DIFFERENT IN THE ANIMAL KINGDOM

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