Acanthochitona armata is a chiton of the surf zone endemic to Hawaiʻi.

[1][2] Acanthochitona armata grows to about one inch in length[3] and is colored green, gray, and/or brown.

They can be found along the surf zone[3] attached to the rocks.

Acanthochitona armata is oval-shaped with a bilaterally symmetric body.

[4] Historically, Chiton species were not eaten by Hawaiians, but used in ceremonies like the mawaewae to show the presence of firstborns.