The Finger Monkey

It is one of the smallest primates, and the smallest true monkey, with its body length ranging from 14 to 16 centimetres (5.5 to 6.3 in). The pygmy marmoset, also known as "dwarf monkey" (Cebuella pygmaea) is native to South America.

Nicknames for this monkey often refer to its size, for example: mono de bolsillo ("pocket monkey"), leoncito ("little lion"), or "Finger Monkey" in the US.