Nacellidae is a taxonomic

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...

s or true

limpet Limpets are a group of aquatic snails that exhibit a conical shell shape (patelliform) and a strong, muscular foot. Limpets are members of the class Gastropoda, but are polyphyletic, meaning the various groups called "limpets" descended indep ...

s, marine

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

molluscs in the subclass

Patellogastropoda The Patellogastropoda, common name true limpet Limpets are a group of aquatic snails that exhibit a conical shell shape (patelliform) and a strong, muscular foot. Limpets are members of the class Gastropoda, but are polyphyletic, meaning th ...

Taxonomy

Nacellidae was the only family in the superfamily Nacelloidea as described by Bouchet & Rocroi (2005),. However a molecular phylogenetic study of

by Nakano & Ozawa (2007) found that Nacellidae was recovered within

Lottioidea Lottioidea is a superfamily of sea snails or limpets, marine gastropod mollusks in the clade Patellogastropoda, the true limpets.MolluscaBase (2018). Lottioidea Gray, 1840. Accessed through: World Register of Marine Species at: http://www.marines ...

, as shown in the following cladogram:Nakano T. & Ozawa T. (2007). "Worldwide phylogeography of limpets of the order Patellogastropoda: Molecular, morphological and palaeontological evidence". ''Journal of Molluscan Studies'' 73(1) 79-99. . As a result Nacellidae was moved to

in the taxonomic revision of Bouchet et al (2017). More recently, a recent phylogenomic study found Nacellidae as a sister to

Patellidae Patellidae is a taxonomic family of sea snails or true limpets, marine gastropod molluscs in the clade Patellogastropoda. (The superfamily Patelloidea should not be confused with the similar-sounding genus of true limpets '' Patelloida'' which ...

, which suggests that Nacellidae should be transferred to

Patelloidea Patelloidea is a taxonomic superfamily of sea snails or true limpets, marine gastropod molluscs in the subclass PatellogastropodaWoRMS (2020). Patelloidea Rafinesque, 1815. Accessed at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1564 ...

Genera

Genera within the family Nacellidae include: * ''

Cellana ''Cellana'' is a genus of sea snails or limpets, marine gastropod molluscs in the family Nacellidae, the true limpets.WoRMS (2010). Cellana H. Adams, 1869. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Acc ...

'' H. Adams, 1869 * '' Naccula'' Iredale, 1924Iredale T. (1924). ''Proc. Linn. Soc. N.S. Wales'' 49: 182, 238. * ''

Nacella ''Nacella'' is a southern, cold-water genus of true limpets, marine (ocean), marine gastropod molluscs in the family (biology), family Nacellidae, the true limpets.Bouchet, P.; Gofas, S. (2015). Nacella Schumacher, 1817. Accessed through: World R ...

'' Schumacher, 1817 - type genus * '' Macclintockia'' Gould, 1846:

taxon inquirendum In biological classification, a ''species inquirenda'' is a species of doubtful identity requiring further investigation. The use of the term in English-language biological literature dates back to at least the early nineteenth century. The term t ...

** - one species ''Macclintockia scabra'' (Gould, 1846): synonym of '' Lottia scabra'' (Gould, 1846)

References

External links

Cunha T.J. & Giribet G. (2019). A congruent topology for deep gastropod relationships. Proceedings of the Royal Society B: Biological Sciences. 286(20182776): 1-8
{{Nacellidae-stub