Lucina pensylvanica

Lucina pensylvanica

Lucina pensylvanica shell
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Lucinida
Superfamily:	Lucinoidea
Family:	Lucinidae
Genus:	Lucina
Species:	L. pensylvanica
Binomial name
*Lucina pensylvanica* (Linnaeus, 1758)
Synonyms^[1]
Lucina grandinata Reeve, 1850 Lucina speciosa Reeve, 1850 Lucina virgo Reeve, 1850 Tellina deaurata Röding, 1798 Venus pensylvanica Linnaeus, 1758

Lucina pensylvanica, commonly known as the Pennsylvania lucine,^[2] is a species of bivalve mollusc in the family Lucinidae.

Taxonomy

This mollusc was first described in 1758 by the Swedish naturalist Carl Linnaeus, who gave it the name Venus pensylvanica. He spelt the specific name incorrectly, with only a single "n" in the first syllable, but by the law of priority laid down in the International Code of Zoological Nomenclature, the original spelling is retained even if it contained an error. The mollusc has since been reassigned to the genus Lucina, becoming Lucina pensylvanica.^[2]

Description

Lucina pensylvanica is nearly circular in shape and grows to a maximum size of about 50 mm (2 in). There is a marked groove on the posterior side of the valves and the concentric sculpturing is somewhat irregular. The valves are largely white, but remnants of the brownish periostracum may remain in the form of calcified scales.^[3] These scales contain calcareous granules and have a thin layer of prismatic aragonite on their ventral surfaces, which gives an unusual flexibility to the margin of the valve.^[4]

Distribution

Found along the Atlantic coast of North America, ranging from North Carolina to the West Indies.^[5]

Ecology

Like other members of the Lucinidae, Lucina pensylvanica possesses chemosymbiotic, sulphur-oxidizing bacteria housed in bacteriocytes in their gills.^[6] During periods of starvation in the laboratory, researchers found that Lucina pensylvanica preserved the bacterial symbionts for three months or more, continuing to obtain nutrients from the bacteria which continued their sulphur-oxidizing activities, relying on sulphur stored by the host in granules. This was in contrast to the dwarf tiger lucine Ctena orbiculata which did not retain its symbiotic bacteria during a period of starvation, consuming the bacteria instead.^[7]

References

^ Taylor, John (2020). "Lucina pensylvanica (Linnaeus, 1758)". WoRMS. World Register of Marine Species. Retrieved 28 December 2020.
^ ^a ^b Abbott, R. Tucker & Morris, Percy A. (2001). A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies. Houghton Mifflin Harcourt. p. 48. ISBN 0-618-16439-1.
^ Leal, J.H. "Lucina pensylvanica (Linnaeus, 1758)". Southwest Florida Shells. Retrieved 26 December 2020.
^ Taylor, J.D.; Glover, E.; Peharda, M.; Bigatti, G. & Ball, A. (2004). "Extraordinary flexible shell sculpture: The structure and formation of calcified periostracal lamellae in Lucina pensylvanica (Bivalvia: Lucinidae)"". Malacologia. 46 (2): 277–294.
^ Abbott, R.T. & Morris, P.A. A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies. New York: Houghton Mifflin, 1995. 48.
^ Taylor, John D. & Glover, Emily A. (2000). "Functional anatomy, chemosymbiosis and evolution of the Lucinidae". Geological Society, London, Special Publications. 177: 207–225. doi:10.1144/GSL.SP.2000.177.01.12.
^ Elisabeth, Nathalie H.; Caro, Audrey; Césaire, Thierry; Mansot, Jean-Louis; Escalas, Arthur; Sylvestre, Marie-Noëlle; Jean-Louis, Patrick & Gros, Olivier (2014). "Comparative modifications in bacterial gill-endosymbiotic populations of the two bivalves Codakia orbiculata and Lucina pensylvanica during bacterial loss and reacquisition". FEMS Microbiology Ecology. 89 (3): 646–658. doi:10.1111/1574-6941.12366.

Taxon identifiers
Lucina pensylvanica	Wikidata: Q3013654 BOLD: 652042 CoL: 3WCCW GBIF: 5189229 iNaturalist: 253485 IRMNG: 10245660 ITIS: 80452 NCBI: 244477 OBIS: 420791 Open Tree of Life: 908817 Paleobiology Database: 94553 SeaLifeBase: 48294 WoRMS: 420791

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