User:Est22/Neripteron vespertinum

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Neripteron vespertinum, also known as hapawai in Olelo, is a species of freshwater snail endemic to the islands of Hawaii. Neripteron vespertinum was formerly known as Neritina vespirtina and Theodoxus vespertinus.

Anatomy and morphology
It has a flat round shell with different shades of olive green and brown.

Distribution and habitat
They are primarily found on streams. Members of the amphidromous family. Eggs are laid on streams or shells and then later end up in the ocean. After developing, they find their way back to the streams. The decline of their natural habitat has caused them to become endangered and may soon become extinct.

Behavior
Due to environmental threats, streams are heavily affected. Drought in Hawaii has forced Neripteron vespertinum to relocate to unaltered streams or the sea.

Conservation status
Hapawai is an endangered species. There is currently no action to reverse this.