Spider monkey (Ateles geoffroyi), is the
most representive and charasmatic mammal
of the area. It is possible to observe
them during walks around the lagoon. It
is estimated that there are
approximately between 400 and 800
individuals. I a lesser quantity there
are also Howler monkeys (Aloutta pigra).
It is important to make note that
although spider monkeys are easly
spotted and are not perturbed by human
presence, these are living in their
natural environment and there exist
several other patches of vegetation to
where they move to in serch of food.