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. References

 Liu, J.Y. [Ruiyu] (ed.). (2008). Checklist of marine biota of China seas. China Science Press. 1267 pp

External links
 Pilsbry, H. A. (1893-1895). Manual of conchology, structural and systematic, with illustrations of the species. Ser. 1. Vol. 15: Polyplacophora (Chitons). Acanthochitidae, Cryptoplacidae and appendix. Tectibranchiata. pp 1-463, pls 1-58

Acanthochitonidae
Endemic fauna of Hawaii
Molluscs described in 1872