''Lucina'' is a genus of saltwater

clam Clam is a common name for several kinds of bivalve molluscs. The word is often applied only to those that are edible and live as infauna, spending most of their lives halfway buried in the sand of the seafloor or riverbeds. Clams have two sh ...

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 * ...

bivalve Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, biv ...

molluscs 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 ...

. These bivalves are remarkable for their

endosymbiosis An ''endosymbiont'' or ''endobiont'' is any organism that lives within the body or cells of another organism most often, though not always, in a mutualistic relationship. (The term endosymbiosis is from the Greek: ἔνδον ''endon'' "withi ...

with

sulphide Sulfide (British English also sulphide) is an inorganic anion of sulfur with the chemical formula S2− or a compound containing one or more S2− ions. Solutions of sulfide salts are corrosive. ''Sulfide'' also refers to chemical compounds lar ...

-oxidizing

bacteria Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were am ...

Fossil record

Fossils of ''Lucina'' are found in marine strata from the

Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, w ...

until the Quaternary (age range: from 388.1 to 0.012 million years ago).

Selected species

* '' Lucina adansoni'' d'Orbigny, 1840 * ''

Lucina aurantia Lucina may refer to: * 146 Lucina, a main belt asteroid * Lucina (mythology), the goddess of childbirth in Roman mythology * Saint Lucina, 1st-century Christian ** Crypt of Lucina, part of the catacombs of Rome * Lucina C. Broadwell (1889-1919), U ...

'' Deshayes, 1832 * '' Lucina carnosa'' Dunker, 1865 * † ''

Lucina columbella Lucina may refer to: * 146 Lucina, a main belt asteroid * Lucina (mythology), the goddess of childbirth in Roman mythology * Saint Lucina, 1st-century Christian ** Crypt of Lucina, part of the catacombs of Rome * Lucina C. Broadwell (1889-1919), U ...

'' Lamarck, 1818 * † ''

Lucina orbicularis Lucina may refer to: * 146 Lucina, a main belt asteroid * Lucina (mythology), the goddess of childbirth in Roman mythology * Saint Lucina, 1st-century Christian ** Crypt of Lucina, part of the catacombs of Rome * Lucina C. Broadwell (1889-1919), ...

'' Deshayes, 1835 * '' Lucina pensylvanica'' (

Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, t ...

1758 Events January–March * January 1 – Swedish biologist Carl Linnaeus (Carl von Linné) publishes in Stockholm the first volume (''Animalia'') of the 10th edition of ''Systema Naturae'', the starting point of modern zoological ...

) – Pennsylvania lucine * † ''

Lucina podagrina Lucina may refer to: * 146 Lucina, a main belt asteroid * Lucina (mythology), the goddess of childbirth in Roman mythology * Saint Lucina, 1st-century Christian ** Crypt of Lucina, part of the catacombs of Rome * Lucina C. Broadwell (1889-1919), U. ...

'' (Dall, 1903) * '' Lucina roquesana'' J. Gibson-Smith & W. Gibson-Smith, 1982 * ''

Lucina roscoeorum Lucina may refer to: * 146 Lucina, a main belt asteroid * Lucina (mythology), the goddess of childbirth in Roman mythology * Saint Lucina, 1st-century Christian ** Crypt of Lucina, part of the catacombs of Rome * Lucina C. Broadwell (1889-1919), U ...

'' (Kilburn, 1974) ;Species brought into synonymy: * ''Lucina amiantus'' (

Dall Dall may refer to: People * Anders Bendssøn Dall (died 1607), Danish Lutheran bishop * Bobby Dall (born 1963), American musician * Caroline Healey Dall (1822–1912), American feminist writer *Clarrie Dall (1887–1953), Australian footballer * C ...

, 1901) – decorated lucine : synonym of ''

Radiolucina amianta ''Lucina amiantus'', or the decorated lucine, is a species of bivalve mollusc in the family Lucinidae. MolluscaBase eds. (2021). MolluscaBase. Radiolucina amianta (Dall, 1901). Accessed through: World Register of Marine Species at: http://www.ma ...

'' (Dall, 1901) (incorrect gender ending) * ''Lucina bermudensis''

, 1901: synonym of † ''

Lucinoma bermudensis ''Lucinoma'' is a genus of saltwater clams, marine bivalve molluscs in the subfamily Codakiinae of the family Lucinidae.MolluscaBase eds. (2021). MolluscaBase. Lucinoma Dall, 1901. Accessed through: World Register of Marine Species at: http:// ...

'' (Dall, 1901) * ''Lucina excavata'' Carpenter, 1857: synonym of ''

Here excavata Here is an adverb that means "in, on, or at this place". It may also refer to: Software * Here Technologies, a mapping company * Here WeGo (formerly Here Maps), a mobile app and map website by Here Television * Here TV (formerly "here!"), a ...

'' (Carpenter, 1857) * ''Lucina fenestrata'' Hinds, 1845: synonym of ''

Lucinisca fenestrata ''Lucinisca'' is a genus of saltwater clams, marine bivalve molluscs in the subfamily Lucininae of the family Lucinidae.† Species * † '' Lucinisca arrogans'' Olsson, 1964 * † '' Lucinisca bocasensis'' Olsson, 1922 * † '' Lucinisca c ...

'' (Hinds, 1845) * ''Lucina floridana''

Conrad Conrad may refer to: People * Conrad (name) Places United States * Conrad, Illinois, an unincorporated community * Conrad, Indiana, an unincorporated community * Conrad, Iowa, a city * Conrad, Montana, a city * Conrad Glacier, Washingto ...

, 1833, now ''

Stewartia floridana ''Stewartia floridana'' is a bivalve of the family Lucinidae that is chemosymbiotic with sulfur-oxidizing bacteria. MolluscaBase eds. (2022). MolluscaBase. Stewartia floridana (Conrad, 1833). Accessed through: World Register of Marine Species at: ...

'': synonym of ''

'' (Conrad, 1833) * ''Lucina keenae'' Chavan, 1971: synonym of '' Callucina keenae'' (Chavan, 1971) * ''Lucina leucocyma'' Dall, 1886: synonym of ''

Pleurolucina leucocyma ''Pleurolucina leucocyma'', or the saw-toothed pen shell, is a species of bivalve mollusc in the subfamily Lucininae of the family Lucinidae.MolluscaBase eds. (2021). MolluscaBase"Pleurolucina leucocyma (Dall, 1886)" Accessed through: World Re ...

'' (Dall, 1886) * ''Lucina nuttalli'' (

, 1791): synonym of ''

Lucinisca nuttalli ''Lucinisca'' is a genus of saltwater clams, marine bivalve molluscs in the subfamily Lucininae of the family Lucinidae.† Species * † '' Lucinisca arrogans'' Olsson, 1964 * † '' Lucinisca bocasensis'' Olsson, 1922 * † '' Lucinisca c ...

'' (Conrad, 1837) * ''Lucina sombrerensis''

, 1886: synonym of ''

Pleurolucina sombrerensis ''Pleurolucina'' is a genus of saltwater clams, marine bivalve Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies en ...

'' (Dall, 1886) * † ''Lucina trisulcata''

, 1841: synonym of † '' Cavilinga trisulcata'' (Conrad, 1841)

Characteristics

The members of the genus ''Lucina'', as other members of the family

Lucinidae Lucinidae, common name hatchet shells, is a family of saltwater clams, marine bivalve molluscs. These bivalves are remarkable for their endosymbiosis with sulphide-oxidizing bacteria. Characteristics The members of this family have a worldwide ...

, are found in muddy sand or gravel at or below low tide mark. They have characteristically rounded shells with forward-facing projections. The valves are flattened and etched with concentric rings. Each valve bears two cardinal and two plate-like lateral teeth. These molluscs do not have siphons but the extremely long foot makes a channel which is then lined with slime and serves for the intake and expulsion of water.Barrett, J. H. and C. M. Yonge, 1958. Collins Pocket Guide to the Sea Shore. P. 161. Collins, London * ''

Lucina leucocyma ''Pleurolucina leucocyma'', or the saw-toothed pen shell, is a species of bivalve mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Arou ...

, 1886 – four-ribbed lucine: synonym of ''

'' (Dall, 1886) * ''

Lucina muricata Lucina may refer to: * 146 Lucina, a main belt asteroid * Lucina (mythology), the goddess of childbirth in Roman mythology * Saint Lucina, 1st-century Christian ** Crypt of Lucina, part of the catacombs of Rome * Lucina C. Broadwell (1889-1919), U ...

'' (

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, 1798): synonym of ''

Lucinisca centrifuga ''Lucinisca'' is a genus of saltwater clams, marine bivalve molluscs in the subfamily Lucininae of the family Lucinidae.† Species * † '' Lucinisca arrogans'' Olsson, 1964 * † '' Lucinisca bocasensis'' Olsson, 1922 * † '' Lucinisca c ...

'' (Dall, 1901) * ''

Lucina nassula Lucina may refer to: * 146 Lucina, a main belt asteroid * Lucina (mythology), the goddess of childbirth in Roman mythology * Saint Lucina, 1st-century Christian ** Crypt of Lucina, part of the catacombs of Rome * Lucina C. Broadwell (1889-1919), ...

'' (

, 1846): synonym of ''

Lucinisca nassula ''Lucinisca'' is a genus of saltwater clams, marine bivalve molluscs in the subfamily Lucininae of the family Lucinidae.† Species * † '' Lucinisca arrogans'' Olsson, 1964 * † '' Lucinisca bocasensis'' Olsson, 1922 * † '' Lucinisca c ...

'' (Conrad, 1846) * ''

Lucina pectinata Lucina may refer to: * 146 Lucina, a main belt asteroid * Lucina (mythology), the goddess of childbirth in Roman mythology * Saint Lucina, 1st-century Christian ** Crypt of Lucina, part of the catacombs of Rome * Lucina C. Broadwell (1889-1919), ...

'' ( Gmelin, 1791): synonym of ''

Phacoides pectinatus ''Phacoides'' is a genus of bivalves belonging to the family Lucinidae. MolluscaBase eds. (2021). MolluscaBase. Phacoides Agassiz, 1846. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&i ...

'' (Gmelin, 1791) * ''

Lucina radians Lucina may refer to: * 146 Lucina, a main belt asteroid * Lucina (mythology), the goddess of childbirth in Roman mythology * Saint Lucina, 1st-century Christian ** Crypt of Lucina, part of the catacombs of Rome * Lucina C. Broadwell (1889-1919), U. ...

'' (

, 1841): synonym of '' Callucina keenae'' (Chavan, 1971)

References

{{Commonscat Bivalve genera Taxa named by Jean Guillaume Bruguière