Brachidontes crebristriatus, also known as the Hawaiian mussel, nahawele liʻiliʻi or kio-nawahele, is a bivalve known only from Hawaiʻi.

[1][2] This is a laterally compressed mussel that attaches to substrates by strong byssus threads.

The species occurs in the Hawai'i group in brackish water, on the seashore where there is fresh water or along limestone shorelines, usually at the low tide mark.

They are found usually half buried or attached to rocks in clusters or in patches.

Hawaiian mussels are a popular food item and are consumed both cooked and raw.