Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Polyplacophora
Ordo: Acanthochitonina
Familia: Acanthochitonidae
Genera: Acanthochitona - Americhiton - Craspedochiton - Cryptochiton - Cryptoconchus - Notoplax


Acanthochitonidae Pilsbry, 1893

Acanthochitonidae is a family of chitons.

These small to large chitons are characterised by a broad girdle with erect tufts of up to ten large bristles. The coarsely granular valves of the shell are partially overlapped by the girdle. This girdle is all covered by coarse spines. The articulating flange, or articulamentum, is well developed. The margin of the cephalic plate has about five slits. The lateral insertion plates all have a single notch. [1]

According to the World Register of Marine Species (WoRMS) the following genera are included in this family [2]

* Acanthochitona Gray, 1821
* Amycula
* Bassethullia Pilsbry, 1928
* Choneplax Carpenter MS, Dall, 1882
* Craspedochiton Shuttleworth, 1853
* Craspedoplax Iredale & Hull, 1925
* Cryptoconchus de Blainville MS, Burrow, 1815
* Leptoplax Carpenter MS, Dall, 1882
* Notoplax H. Adams, 1861
* Onithochiton Gray, 1847
* Pseudotonicia Ashby, 1928


1. ^ P.J. Hayward, and J.S. Ryland (1996). Handbook of the Marine Fauna of North-West Europe. Oxford University Press. pp. 485. ISBN 0-19-854055-8.
2. ^ WoRMS : Acanthochitonidae

* Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). ISBN 0-915826-22-4. XII, 195 pp

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