Rissoellidae are a

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

of small

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

s, marine

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusc Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum ...

s in the subclass

Heterobranchia Heterobranchia, the heterobranchs (meaning "different gill"), is a taxonomic clade of snails and slugs, which includes marine, aquatic, and terrestrial gastropod molluscs. Heterobranchia is one of the main clades of gastropods. Currently Het ...

. Rissoellidae is the only family within the superfamily Rissoelloidea in the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005.

Genera

Genera within the family Rissoellidae include: * ''

Cythnia ''Cythnia'' is a genus of sea snails, marine gastropod mollusks in the family Rissoellidae Rissoellidae are a family (biology), family of small sea snails, marine (ocean), marine gastropod molluscs in the subclass Heterobranchia. Rissoellid ...

'' Carpenter, 1864Bouchet, P. (2015). ''Cythnia'' Carpenter, 1864. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=565658 on 2017-05-24 * ''

Rissoella Rissoella is a genus of minute sea snails, marine gastropods, in the family Rissoellidae.MolluscaBase eds. (2022). MolluscaBase. Rissoella Gray, 1847. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.p ...

'' Gray, 1847 - synonyms: '' Heterorissoa'' Iredale, 1912; '' Jeffreysia'' Alder n Forbes & Hanley 1850

References

External links

* Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979
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{{Taxonbar, from1=Q7336371, from2=Q21215051 Gastropod families Taxa named by John Edward Gray