Weddell's saddle-back tamarin

Weddell's saddle-back tamarin is a species of saddle-back tamarin, a type of small monkey from South America. Weddell's saddle-back tamarin was formerly considered to be a subspecies of the brown-mantled tamarin, L. fuscicollis. It lives in Brazil, Bolivia and Peru, with the type locality being in Bolivia.
There are 3 subspecies:

Males have a head and body length of about and females have a head and body length of about. The tail is between and long. Males weigh about and females weight about.
Its diet consists of fruits, gums, nectar, insects and other small animals. It lives in various types of groups, including single-adult male, single adult female groups, multi-male, multi-female groups, single-male, multi-female groups and single female, multi male groups. Females sometimes remain in their natal group. It associates with the emperor tamarin, the red-bellied tamarin and Goeldi's marmoset.
The IUCN rates it as least concern from a conservation standpoint.