This small brown bat has a tail that passes through the tail membrane. A U.S. Fish and Wildlife Service profile for the nominate subspecies describes daytime cave roosting and large roost aggregations reported in Fiji and American Samoa.
It is small and brown, and the tip of its tail pierces the membrane and appears on its upper side.
It is described as roosting by day in caves, including overhanging cliffs, crevices, lava tubes, and limestone caves. It shares caves with swiftlets; large aggregations are reported in Fiji and American Samoa.
An extinction-risk assessment has not been added yet.