| morphology and mitochondrial phylogenetics reveal that the amazon river separates two eastern squirrel monkey species: saimiri sciureus and s. collinsi. | saimiri has a complicated taxonomic history, and there is continuing disagreement about the number of valid taxa. despite these controversies, one point of consensus among morphologists has been that the eastern amazonian populations of squirrel monkeys form a single terminal taxon, saimiri sciureus sciureus (linnaeus, 1758). this group is distributed to both the north and south of the middle to lower amazon river and in the marajó archipelago. however, a recent molecular study by lavergne and c ... | 2015 | 25451802 |