Marca’s Marmoset

Marcas Marmoset

The Marca’s Marmoset (Mico Mauesi) is a New World Monkey in the Callitrichidae family of monkeys and can be found in the Amazon rainforest near the Aripuanã River in Brazil. The Marca’s Marmoset is one of the more recent additions to the Marmoset breed of monkeys, first being cataloged in 1992 by R.A. Mittermeier. The Marca’s Marmoset is still somewhat of a mystery to this day, and was never documented as being spotted in the wild until after 2008 according to the International Union for Conservation of Nature.


The Marca’s Marmoset usually dwells along the river valley of the Aripuanã River in the western part of central Brazil. The Marca’s Marmoset typically remains in the forest canopy where its preferred sources of food are most abundant. In times of drought or when foo is scare, the Marca’s Marmoset will occasionally come down from the trees to scavenge for food and water.


The Marca’s Marmoset is an omnivorous mammal, meaning their diet consists of both plants and small animals. While the Marca’s Marmoset has specially evolved teeth and claws to more easily access the gums and saps of trees, a good portion of their diet also includes small insects such as spiders, as well as mollusks, bird eggs, and a wide variety of fruits. Though the Marca’s Marmoset prefers plant exudates, they are known to have a large variety of food preferences depending on their specific location and availability.

Fun Marca’s Marmoset Facts

  1. The Marca’s Marmoset was first classified in 1992.
  2. “Marmoset” is derived from the French “marmouset” which means, loosely, shrimp or dwarf. An apt name, considering they are the smallest of the true monkeys.
  3. These monkeys were documented as seen in the wild until 2008.
  4. The Marca’s Marmoset usually lives in goups between 10 and 15 members.