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Anodontia philippiana

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Species of bivalve

Anodontia philippiana
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Lucinida
Superfamily: Lucinoidea
Family: Lucinidae
Genus: Anodontia
Species: A. philippiana
Binomial name
Anodontia philippiana
(Reeve, 1850)
Synonyms
  • Lucina philippiana
  • Pegophysema philippiana
  • Anodontia schrammi

Anodontia philippiana, or the chalky buttercup, is a species of bivalve mollusc in the family Lucinidae. It can be found burrowing in soft substrate in shallow waters along the Atlantic coast of North America, its range extending from North Carolina in the United States to the West Indies and Bermuda.

Description

The chalky buttercup grows to a maximum length of 10 centimetres (3.9 in). Both the exterior and interior are white. It is very similar in appearance to the closely related buttercup lucine (Anodontia alba) which occupies the same range as it in the Caribbean area. The chalky buttercup can be distinguished by the fact that the interior of the valves are white rather than yellow and that the scars formed by the anterior adductor muscles slope at an angle of 30° to the pallial line.

Distribution and habitat

The chalky buttercup is found in both the Caribbean area and in the tropical Indo-Pacific. It is one of a number of bivalve species to be found in the oxygen-depleted sediments among mangroves.

Biology

The chalky buttercup has a symbiotic relationship with certain bacteria that live in its gills. These can oxidise methane and hydrogen sulphide, both of which are found in the low-oxygen, silty sand and mud in which this mollusc burrows. The chalky buttercup uses the energy produced by the bacteria and this enables it to live in an environment that would otherwise be too low in food particles. A similar mutually beneficial arrangement is found among deep-water clams which harbour bacteria that flourish beside the thermal vents where the molluscs live.

Taxonomy

Traditionally this species was known as Lucina philippiana, the name given to it by Reeve in 1850. Some authorities now refer to it as Pegophysema philippiana and Anodontia schrammi is another synonym.

References

  1. Abbott, R.T.; Morris, P.A. A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies. New York: Houghton Mifflin, 1995. 51.
  2. Sweat, L. H. (2010). "Anodontia alba: Buttercup lucine". Smithsonian Marine Station at Fort Pierce. Retrieved 2012-11-26.
  3. ^ Bouchet, Philippe (2012). "Pegophysema philippiana (Reeve, 1850)". WoRMS. World Register of Marine Species. Retrieved 2012-11-26.
  4. Meyer, Erin; Nilkerd, Bancha; Glover, Emily A.; Taylor, John D. (2008). "Ecological importance of chemoautotrophic lucinid bivalves in a peri-mangrove community in eastern Thailand" (PDF). The Raffles Bulletin of Zoology. 18: 41–55.
  5. Glover, Emily A.; Taylor, John D.; Williams, Suzanne T. (2008). "Mangrove-associated lucinid bivalves of the central Indo-west Pacific: Review of the "Austriella" group with a new genus and species (Mollusca: Bivalvia: Lucinidae)" (PDF). The Raffles Bulletin of Zoology. 18: 25–40.
  6. ^ "Symbiosis in Bivalves: Chemosymbiotic bivalves". University of Cambridge. 2011. Archived from the original on 2012-08-19. Retrieved 2012-11-26.
  7. Ball, Alexander D; . Purdy, Kevin J; Glover, Emily A.; Taylor, John D. (2009). "Ctenidial structure and three bacterial symbiont morphotypes in Anodontia (Euanodontia) ovum (Reeve, 1850) from the Great Barrier Reef, Australia (Bivalvia: Lucinidae)". Journal of Molluscan Studies. 75: 175–185. doi:10.1093/mollus/eyp009.
Taxon identifiers
Anodontia philippiana
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