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Family  Callistoplacidae

Callistoplacid chitons




Originally erected as a family by Pilsbry in 1893, this group was treated as a subfamily of the Ischnochitonidae but recently restored to family level. It is a small family found in most temperate and tropical seas of the world, usually in the sublittoral zone (Gowlett-Holmes, 2001). Animals are characterised by strong shell sculpture and absence of aesthetes (minute light sensite organs) in the shell.

Family Reference

  • Iredale, T. & Basset Hull, A.F. 1927 Callistelasma antiqua Pp. 54 in A Monograph of the Australian Loricates. Royal Zoological Society of New South Wales, Sydney. 168 pp. (This is a consolidated and repaginated version of the same material that was published in sections in The Australian Zoologist over the years 1923-1927).

  • Kaas, P. & Van Belle, R. 1994. Callistochiton antiquus (Reeve, 1847) p. 185 in Monograph of Living Chitons Volume 5 Suborder Ischnochitonina E.J. Brill/Dr. W. Backhuys Leiden.

  • Gowlett-Holmes, K. 2001. Callistoplacinae. Pp 52-54 in Wells, A. & Houston, W.W.K. (eds) Zoological catalogue of Australia. Vol. 17.2 Mollusca: Aplacophora, Polyplacophora, Scaphopoda, Cephalopoda. Melbourne: CSIRO Publishing, Australia.

  • Gowlett-Holmes, K. 1998. Callistoplacinae. P. 182 in Beesley, P.L., Ross, G.J.B. & Wells, A. (eds) Mollusca: The Southern Synthesis. Fauna of Australia. Vol. 5. CSIRO Publishing: Melbourne. Part B. viii 565-1234 pp.


The only species that occurs in NSW is detailed here.

Identification Notes

See the introduction to Acanthochitonidae for shell terminology.


Copyright Des Beechey 2019