Hemiarthrum setulosum | |
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Genus: | Hemiarthrum Carpenter in Dall, 1876 |
Species: | H. setulosum |
Binomial name | |
Hemiarthrum setulosum Carpenter in Dall, 1876 | |
Synonyms | |
Hemiarthrum setulosum is a species of chiton in the family Hanleyidae, the only member of the genus Hemiarthrum. [1]
Hemiarthrum setulosum represent one of the five major clades of chitons that are living. Hemiarthrim setulosum has an incomplete lateral tract in the nerve ring. They are the only known species to have an incomplete one. [2]
This species occurs off the Kerguelen Islands and Cape Horn.
Chitons are marine molluscs of varying size in the class Polyplacophora, formerly known as Amphineura. About 940 extant and 430 fossil species are recognized.
The Buccinidae are a very large and diverse taxonomic family of large sea snails, often known as whelks or true whelks.
Bulimulidae is a taxonomic family of medium-sized to large, air-breathing, tropical and sub-tropical land snails, terrestrial pulmonate gastropod molluscs in the superfamily Orthalicoidea.
Siphonariidae, also known as false limpets, are a taxonomic family of small to medium-sized air-breathing sea snails, marine and brackish water pulmonate gastropod molluscs.
Chiton is a genus of chitons, a polyplacophoran mollusk in the family Chitonidae.
Nacella is a southern, cold-water genus of true limpets, marine gastropod molluscs in the family Nacellidae, the true limpets.
Ischnochiton is a genus of polyplacophoran mollusc.
Onithochiton is a genus of chitons in the subfamily Toniciinae of the family Chitonidae, which is distributed from Australia and New Zealand to South Africa.
Onithochiton neglectus neglectus is a subspecies of chiton in the family Chitonidae.
Acanthochitona is a genus of chitons in the family Acanthochitonidae, of worldwide distribution.
Notoplax is a genus of chitons in the family Acanthochitonidae.
Architectonicidae, common name the staircase shells or sundials, are a family of sea snails, marine gastropod mollusks in the informal group "Lower Heterobranchia" of the clade Heterobranchia.
Lamellaria is a genus of small slug-like sea snails, marine gastropod molluscs in the family Velutinidae.
Admete is a genus of medium-sized sea snails, marine gastropod molluscs in the family Cancellariidae, the nutmeg snails.
Odostomia is the most speciose genus of minute sea snails, pyramidellid gastropod mollusks. This genus is placed in the family Pyramidellidae in the subfamily Odostomiinae. There are several hundred species in this diverse genus
Erato is a genus of small sea snails, marine gastropod molluscs in the family Eratoidae, the trivias and allies.
Fossarina is a genus of sea snails, marine gastropod molluscs in the family Trochidae, the top shells.
Cantharidus, common name the kelp shells, is a genus of sea snails, marine gastropod molluscs of the family Trochidae, the top shells.
Margarites is a genus of sea snails, marine gastropod mollusks in the family Margaritidae.
Tonicia is a genus of chitons in the subfamily Toniciinae of the family Chitonidae.