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Some species brood the eggs within the mantle cavity, and the species Callistochiton viviparus even retains them within the ovary and gives birth to live young, an example of ovoviviparity. The egg has a tough spiny coat, and usually hatches to release a free-swimming trochophore larva, typical of many other mollusc groups.
Subfamilies and genera within the family Chitonidae include: Subfamily Chitoninae Rafinesque, 1815. Chiton Linnaeus, 1758 – the type genus of the family; Amaurochiton Thiele, 1893
The genus Chiton has been split into several subgenera as follows: [2]. Subgenus Chiton (Chiton) Linnaeus, 1758. Chiton (Chiton) albolineatus Broderip & Sowerby, 1829; Chiton (Chiton) articulatus Sowerby in Broderip & Sowerby, 1832
Acanthochitonidae is a family of marine mollusks belonging to the class Polyplacophora, commonly known as chitons. Species are widely distributed throughout the world's oceans, but are most commonly found in the shallow waters of the Pacific Ocean , from Alaska to Chile .
Aculifera (older name: Amphineura) is a proposed clade of molluscs incorporating those groups that have no conch or shell, that is, the Polyplacophora, Caudofoveata (=Chaetodermomorpha) and Solenogastres (=Neomeniomorpha). [1] It is sister to the Conchifera.
Sirenko B.I. 1993. Revision of the system of the order Chitonida (Molluscs: Polyplacophora) on the basis of correlation between the type of gills arrangement and the shape of the chorion processes. Ruthenica 3: 93-117
Mopalia muscosa, the mossy chiton, is a species of chiton, a polyplacophoran, an eight-plated marine mollusk.It is a northeastern Pacific species which occurs from British Columbia, Canada, to Baja California Mexico.
Mopaliidae is a family of marine molluscs in the class Polyplacophora. [1] [2] Genera. There are 10 recognized genera: [2] Amicula Gray, 1847; Dendrochiton Berry, 1911;