Phylum Mollusca Linnaeus, 1758 - molluscs
Class Polyplacophora Blainville, 1816 [monotypic] - chitons
Subclass Polyplacophora Gray, 1821 [monotypic]
see Class Polyplacophora Blainville, 1816
Order Lepidopleurida Thiele, 1910
Suborder Acanthochitonina Bergenhayn, 1930
Family Acanthochitonidae Pilsbry, 1893
Subfamily Acanthochitoninae Pilsbry, 1893
see Family Acanthochitonidae Pilsbry, 1893
Genus Cryptoconchus Burrow, 1815