Tridacna squamosa

Tridacna squamosa

Tridacna squamosa, Fluted giant clam, Scaly clam

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Tridacna squamosa

Tridacna squamosa, known commonly as the fluted giant clam and scaly clam, is one of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian Oceans. It is distinguished by the large, leaf-like fluted edges on its shell called 'scutes' and a byssal opening that is small compared to those of other members of the subfamily Tridacnindae. Normal coloration of the mantle ranges from browns and purples to greens and yellows arranged in elongated linear or spot-like patterns. Tridacna squamosa grows to 40 centimetres (16 in) across.

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Sessile in adulthood, the clam's mantle tissues act as a habitat for the symbiotic single-celled dinoflagellate algae (zooxanthellae) from which it gets a major portion of its nutrition. By day, the clam spreads out its mantle tissue so that the algae receive the sunlight they need to photosynthesize.

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The IUCN lists this clam as lower risk, but dependent on conservation efforts. The species is listed in Appendix II of the Convention on International Trade in Endangered Species (CITES) meaning international trade (including in parts and derivatives) is regulated.

References

1. Tridacna squamosa Wikipedia article - https://en.wikipedia.org/wiki/Tridacna_squamosa
2. Tridacna squamosa on The IUCN Red List site - https://www.iucnredlist.org/species/22140/9362870

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