The tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus Saguinus. They are closely related to the lion tamarins in the genus Leontopithecus.
https://en.wikipedia.org/wiki/Tamarin
Tamarin Jungle Tree Leaves
"As a professor of science, I assure you we did, in fact, evolve from filthy monkey-men."
Golden Tamarin
Tamarin Jungle Tree Leaves