The Pygmy Marmoset ...... Also called the Dwarf Monkey. It has many nicknames such as, “pocket monkey” and “little lion”. It is a New World monkey that is native to the rainforest canopy. It is one of the smallest primates, and the smallest true monkey. Its body length ranges from 14 to 16 cm, but that isn't including the tail. The Pygmy Marmoset has a long tail, it's about 15 to 20 cm long. Male Pygmy Marmosets weigh around 140 grams, and females only 120 grams.
The Pygmy Marmoset - by Eileen Bao