Chitons are marine molluscs of varying size in the class Polyplacophora, formerly known as Amphineura. About 940 extant and 430 fossil species are recognized.
Haminoeidae, commonly known as the haminoeid bubble snail family, is a taxonomic family of sea snails, marine opisthobranch gastropod mollusks in the superfamily Haminoeoidea.
The Trochidae, common name top-snails or top-shells, are a taxonomic family of very small to large sea snails, marine gastropod molluscs in the clade Vetigastropoda.
Chiton is a genus of chitons, a polyplacophoran mollusk in the family Chitonidae.
Rhyssoplax is a genus of chitons in the family Chitonidae, endemic to Australia, New Zealand, New Caledonia, Norfolk Island, and the Kermadec Islands.
Bothriembryon is a genus of tropical air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Bothriembryontidae.
Charopidae is a taxonomic family of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Punctoidea.
Camaenidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea, the typical snails and their allies. This is one of the most diverse families in the clade Stylommatophora.
The Nassariidae, Nassa mud snails (USA), or dog whelks (UK), are a taxonomic family of small to medium-sized sea snails, marine gastropod mollusks in the clade Neogastropoda.
Ischnochiton is a genus of polyplacophoran mollusc.
Onithochiton is a genus of chitons in the family Chitonidae, which is distributed from Australia and New Zealand to South Africa.
Notoplax is a genus of chitons in the family Acanthochitonidae.
Craspedochiton is a genus of chitons in the family Acanthochitonidae, endemic to New Zealand, the Philippines and Australia.
The Columbellidae, the dove snails or dove shells, are a family of minute to small sea snails, marine gastropod mollusks in the order Neogastropoda.
Chitonidae is a family of chitons or polyplacophorans, marine mollusks whose shell is composed of eight articulating plates or valves. There are fifteen extant genera in three subfamilies.
The Tonnoidea are a superfamily of sea snails, marine gastropod molluscs in the order Littorinimorpha. This superfamily includes many very large species.
Chitonida is an order of chitons.
Acanthochitonidae is a family of chitons, marine molluscs in the class Polyplacophora.
Melanella is a genus of very small ectoparasitic sea snails, marine gastropod mollusks or micromollusks in the family Eulimidae.
