Marmoset /(mär"mō̇*zĕt`; 277)/

Mar·mo·set

Marmoset

n.
  1. Any one of numerous species of small South American monkeys of the genera Hapale and Midas, family Hapalidae. They have long soft fur, and a hairy, nonprehensile tail. They are often kept as pets. Called also squirrel monkey. (Zool.)