• Tree snail rotator

    O‘ahu Tree Snail

    All 41 species of the genus Achatinella, also known as the O‘ahu tree snails, are federally listed as endangered.

  • Tree snail1 rotator

    O‘ahu Tree Snail

    They are diverse in patterns, colors, and shapes but all average about 3/4 inch in length.

  • Tree snail3 rotator

    O‘ahu Tree Snail

    They are found on trees and shrubs, are nocturnal, and feed by grazing fungus from the surface of native plant leaves.

About the NWRS

National Wildlife Refuge System


The National Wildlife Refuge System, within the U.S. Fish and Wildlife Service, manages a national network of lands and waters set aside to conserve America's fish, wildlife, and plants.

Learn more about the NWRS