Callitrichidae – Marmosets & tamarins

Callitrichids are sometimes considered primitive squirrel-like primates, but studies show they are morphologically and ecologically advanced. They are among the smallest primates, diurnal and sheltering in tree hollows at night.

Their pelage is soft, dense, and silky in some, with variable colors. The face is sparsely haired. The tail is not prehensile in any species. The Hand and foot are elongated, all digits having pointed sickle-shaped nails except the big toe. Hands are used to secure food but not to convey it to the mouth.

Callitrichids have acute sight, good hearing, and a good sense of smell. Their diet includes soft fruits, insects, and plant exudates.