É. Geoffroy, 1812
They live almost exclusively in mangrove forests, but can also be found in lowland rainforests. It depends on the mangroves near river edges for resting and sleeping. They avoid deforested areas and avoid human settlements.
Physical Appearance [change]
The proboscis mae monkey is known for its very unique, large floppy nose, and the name is taken from the nose, as well. Females have a smaller pointed nose. Another peculiar fact is that a baby proboscis, with its dark blue face and black furs, looks very different from its parents. As it gets older, its fur changes to the orange color of its parents.