The golden lion tamarin (Leontopithecus rosalia) also known as the golden marmoset, is a small New World monkey of the family Callitrichidae, native to the Atlantic coastal forests of Brazil. It gets its name from its fiery orange or red pelage and the extra long hairs that form along its cheek, throat and ears, giving it a distinctive mane. It is 261 mm (10.3 in) tall on average and has an average weight of 620 g (1.37 lb). The golden lion tamarin has a diverse, omnivorous diet consisting of fruits, flowers, nectar, bird eggs, insects and small vertebrates.