''Nacella'' is a southern, cold-water

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of true

limpet Limpets are a group of aquatic snails with a conical gastropod shell, shell shape (patelliform) and a strong, muscular foot. This general category of conical shell is known as "patelliform" (dish-shaped). Existing within the class Gastropoda, ...

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

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 ...

Nacellidae Nacellidae is a taxonomic family of sea snails or true limpets, marine gastropod molluscs in the subclass Patellogastropoda. Taxonomy Nacellidae was the only family in the superfamily Nacelloidea as described by Bouchet & Rocroi (2005),. H ...

, 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 The littoral zone, also called litoral or nearshore, is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely flood ...

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 (, ; commonly ) is the polar regions of Earth, polar region of Earth that surrounds the South Pole, lying within the Antarctic Circle. It is antipodes, diametrically opposite of the Arctic region around the North Pole. The Antar ...

and sub-Antarctic waters including (

Tierra del Fuego Tierra del Fuego (, ; Spanish for "Land of Fire", rarely also Fireland in English) is an archipelago off the southernmost tip of the South America, South American mainland, across the Strait of Magellan. The archipelago consists of the main is ...

Macquarie Island Macquarie Island is a subantarctic island in the south-western Pacific Ocean, about halfway between New Zealand and Antarctica. It has been governed as a part of Tasmania, Australia, since 1880. It became a Protected areas of Tasmania, Tasmania ...

Kerguelen Island The Kerguelen Islands ( or ; in French commonly ' but officially ', ), also known as the Desolation Islands (' in French), are a group of islands in the sub-Antarctic region. They are among the most isolated places on Earth, with the closest t ...

, and Heard and McDonald Islands). 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 ''Nacella deaurata'' is a species of sea snail, a true limpet, a marine gastropod mollusk in the family Nacellidae, one of the families of true limpets.MolluscaBase eds. (2021). MolluscaBase. Nacella deaurata (Gmelin, 1791). Accessed through: Wo ...

'' J. F. Gmelin, 1791 - Patagonian copper limpet * '' Nacella delesserti'' Philippi, 1849 * ''

Nacella edgari ''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 ...

'' Powell, 1957 * '' Nacella flammea'' Gmelin, 1791 * '' Nacella kerguelenensis'' (E. A. Smith, 1877) * '' Nacella macquariensis''

Finlay Finlay is a masculine given name, and also a surname. The given name is represented in Scottish Gaelic as Fionnlagh. Given name Finlay *Finlay Calder, Scottish rugby player * Finlay Christie (comedian), British comedian * Finlay Christie, Scottis ...

, 1927 * ''

Nacella magellanica ''Nacella magellanica'' is a species of sea snail, a true limpet, a marine gastropod mollusk in the family (biology), family Nacellidae, one of the families of true limpets. Description The length of the shell attains 47 mm. Distribution Thi ...

'' J. F. Gmelin, 1791 - Magellanic copper limpet * ''

Nacella mytilina ''Nacella mytilina'' is a species of sea snail, a true limpet, a marine gastropod mollusc in the family Nacellidae Nacellidae is a taxonomic family of sea snails or true limpets, marine gastropod molluscs in the subclass Patellogastropoda. ...

'' Helbling, 1779 * ''

Nacella terroris ''Nacella terroris'' is a southern, cold-water species of sea snail, a limpet, a marine gastropod mollusc in the family Nacellidae, the true limpet Limpets are a group of aquatic snails with a conical gastropod shell, shell shape (patell ...

'' ( Filhol, 1880) * ''

Nacella yaghana ''Nacella'' is a southern, cold-water genus of true limpets, marine gastropod molluscs in the family Nacellidae, the true limpets.Bouchet, P.; Gofas, S. (2015). Nacella Schumacher, 1817. Accessed through: World Register of Marine Species at http ...

'' ''sp. nov.'' González-Wevar & Nakano, 2019 ; Species brought into synonymy: * † ''Nacella baylei'' Cossmann, 1882: synonym of † ''

Acroreia baylei Acroreia or Akroreia () 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), and their towns ap ...

'' (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 ''

'' (Helbling, 1779) * ''Nacella crebristriata'' Verco, 1904: synonym of '' Asteracmea crebristriata'' (Verco, 1904) * ''Nacella delicatissima'' Strebel, 1907: represents particular morphotypes of ''

'' (Gmelin, 1791) * ''Nacella falklandica'' Preston, 1913: synonym of ''

'' (Helbling, 1779) * ''Nacella flexuosa'' Hutton, 1873: synonym of ''

Cellana radians ''Cellana radians'', common name the radiate limpet, is a species of true limpet, a marine (ocean), marine gastropod mollusc in the family (biology), family Nacellidae, which is one of the true limpet families. Description The foot and the head ...

'' (Gmelin, 1791) * ''Nacella fuegiensis'' L. A. Reeve, 1855 - Tierra del Fuego limpet: synonym of ''

'' (Gmelin, 1791) * ''Nacella mytiloides'' Schumacher, 1817: synonym of ''

'' (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: Worl ...

'' (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 ''Asteracmea'' is a genus of true ...

'' (Verco, 1906) * ''Nacella strigatella'' Rochebrune & Mabille, 1885: synonym of ''

'' (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: Worl ...

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