Genus Cryptoplax Blainville, 1818

Type species. Chiton larvaeformis Burrow, 1815, by subsequent designation (Gray 1821: 234).

Remarks. Cryptoplax occurs in tropical and subtropical waters of the Indo-Pacific. The genus extends back to the Miocene of Italy and Paratethys (Dell’Angelo et al. 2016; Dulai 2005), Indonesia, Fiji (Schwabe et al. 2008) and West Pacific Islands (Ladd 1966).