''Nacella'' is a southern, cold-water genus of 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 ...

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

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 ...

mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...

s in the family Nacellidae, the true

s.Bouchet, P.; Gofas, S. (2015). Nacella Schumacher, 1817. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=196963 on 2015-01-26 These limpets are found in the littoral zone and

sublittoral zone The neritic zone (or sublittoral zone) is the relatively shallow part of the ocean above the drop-off of the continental shelf, approximately in depth. From the point of view of marine biology it forms a relatively stable and well-illuminated ...

Antarctic The Antarctic ( or , American English also or ; commonly ) is a polar region around Earth's South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises the continent of Antarctica, the Kerguelen Plateau and other ...

and sub-Antarctic waters including ( Tierra del Fuego, Macquarie Island, Kerguelen Island, and

Heard and McDonald Islands The Territory of Heard Island and McDonald Islands (HIMI) is an Australian external territory comprising a volcanic group of mostly barren Antarctic islands, about two-thirds of the way from Madagascar to Antarctica. The group's overall size ...

). The grayish-brown shell is suboval and flattened and the ribbing on the shell is rather flat. The shiny interior of the shell is rust-colored or chocolate-brown.

Species

Species within the genus ''Nacella'' include: * '' Nacella clypeater'' R. P. Lesson, 1831 - Chilean copper limpet * '' Nacella concinna'' Strebel, 1908 * '' Nacella deaurata'' J. F. Gmelin, 1791 - Patagonian copper limpet * '' Nacella delesserti'' Philippi, 1849 * '' Nacella edgari'' Powell, 1957 * '' Nacella flammea'' Gmelin, 1791 * '' Nacella kerguelenensis'' (E. A. Smith, 1877) * '' Nacella macquariensis'' Finlay, 1927 * '' Nacella magellanica'' J. F. Gmelin, 1791 - Magellanic copper limpet * '' Nacella mytilina'' Helbling, 1779 * '' Nacella terroris'' ( Filhol, 1880) * '' Nacella yaghana'' ''sp. nov.'' González-Wevar & Nakano, 2019 ; Species brought into synonymy: * † ''Nacella baylei'' Cossmann, 1882: synonym of † ''

Acroreia baylei Acroreia or Akroreia ( grc, Ἀκρώρεια) was a mountainous district of ancient Elis on the borders of Arcadia, in which the rivers Peneius and Ladon take their rise. The inhabitants of the district were called Acrocreii (Ἀκρωρεῖοι) ...

'' (Cossmann, 1882) (new combination) * ''Nacella cernica'' H. Adams, 1869: synonym of ''

Cellana livescens ''Cellana livescens'' is a species of sea snail, a marine gastropod mollusk in the family Nacellidae.Rosenberg, G. (2012). Cellana livescens (Reeve, 1855). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia. ...

'' (Reeve, 1855) * ''Nacella chiloensis'' (Reeve, 1855): synonym of ''Nacella magellanica'' (Gmelin, 1791) * ''Nacella compressa'' Verco, 1906: synonym of '' Naccula compressa'' (Verco, 1906) * ''Nacella compressa'' Mabille & Rochebrune, 1889: synonym of '' Nacella mytilina'' (Helbling, 1779) * ''Nacella crebristriata'' Verco, 1904: synonym of '' Asteracmea crebristriata'' (Verco, 1904) * ''Nacella delicatissima'' Strebel, 1907: represents particular morphotypes of '' Nacella deaurata'' (Gmelin, 1791) * ''Nacella falklandica'' Preston, 1913: synonym of '' Nacella mytilina'' (Helbling, 1779) * ''Nacella flexuosa'' Hutton, 1873: synonym of ''

Cellana radians ''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. Acces ...

'' (Gmelin, 1791) * ''Nacella fuegiensis'' L. A. Reeve, 1855 - Tierra del Fuego limpet: synonym of '' Nacella deaurata'' (Gmelin, 1791) * ''Nacella mytiloides'' Schumacher, 1817: synonym of '' Nacella mytilina'' (Helbling, 1779) * ''Nacella parva'' Angas, 1876: synonym of '' Naccula parva'' (Angas, 1876) * ''Nacella peltoides'' Carpenter, 1864: synonym of ''

Williamia peltoides ''Williamia'' is a genus of small sea snails or false limpets, marine pulmonate gastropod molluscs in the family Siphonariidae, the false (air-breathing) limpets.Bouchet, P.; Gofas, S. (2011). Williamia Monterosato, 1884. Accessed through: World ...

'' (Carpenter, 1864) * ''Nacella polaris'' (Hombron & Jacquinot, 1841): synonym of '' Nacella concinna'' (Strebel, 1908) * ''Nacella stowae'' Verco, 1906: synonym of ''

Asteracmea stowae ''Asteracmea'' is a genus of true limpets, marine gastropod molluscs in the family Lottiidae. Species * ''Asteracmea axiaerata'' * ''Asteracmea illibrata'' (J. C. Verco, 1906) * ''Asteracmea roseoradiata'' (J. C. Verco, 1912) * '' Asteracme ...

'' (Verco, 1906) * ''Nacella strigatella'' Rochebrune & Mabille, 1885: synonym of '' Nacella deaurata'' (Gmelin, 1791) * ''Nacella subspiralis'' Carpenter, 1864: synonym of ''

Williamia subspiralis ''Williamia'' is a genus of small sea snails or false limpets, marine pulmonate gastropod molluscs in the family Siphonariidae, the false (air-breathing) limpets.Bouchet, P.; Gofas, S. (2011). Williamia Monterosato, 1884. Accessed through: World ...

'' (Carpenter, 1864) * ''Nacella tasmanica'' Tate & May, 1900: synonym of ''

Propilidium tasmanicum ''Propilidium'' is a genus of sea snails, the true limpets, marine gastropod mollusks in the family Lepetidae Lepetidae is a family of sea snails or small, deep-water true limpets, marine gastropod molluscs in the clade Patellogastropoda the ...

'' (Pilsbry, 1895) (junior synonym) * ''Nacella venosa'' (Reeve, 1855): synonym of ''Nacella magellanica'' (Gmelin, 1791)

References

* Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979

External links

Schumacher, C. F. (1817). Essai d'un nouveau système des habitations des vers testacés. Schultz, Copenghagen. iv + 288 pp., 22 pls

González-Wevar C.A., Hüne M., Rosenfeld S., Nakano T., Saucède T., Spencer H. & Poulin E. (2018). Systematic revision of Nacella (Patellogastropoda: Nacellidae) based on a complete phylogeny of the genus, with the description of a new species from the southern tip of South America. Zoological Journal of the Linnean Society. DOI: 10.1093/zoolinnean/zly067

New Zealand mollusca checklist
Nacellidae {{Nacellidae-stub