Acanthochitona armata

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

Acanthochitona armata grows to about one inch in length and is colored green, gray, and/or brown. They can be found along the surf zone attached to the rocks. Acanthochitona armata is oval-shaped with a bilaterally symmetric body. Historically, Chiton species were not eaten by Hawaiians, but used in ceremonies like the mawaewae to show the presence of firstborns.