The cotton-top tamarin[1] is another small New-World primate found at the edge of tropical and secondary forests in northwestern Colombia.
- Cotton-top tamarins are differentiated from other members of the Saguinus genus by a crest of long, whitish hair that runs from the forehead to the nape of the neck and flows down the shoulders.
- Their back is brown, and the undersides of the legs and arms are yellow to whitish.
- The hindquarters and inner thighs are reddish-orange. Interestingly, the base of the tail is also reddish-orange, while the tip is blackish.
- Features that distinguish callitrichids from other New World monkeys are modified claws instead of nails on all fingers and the presence of two molars instead of three on each side of the jaw.
