Glycymeris_insubrica

<i>Glycymeris nummaria</i>

Glycymeris nummaria

Species of bivalve

Glycymeris nummaria is a species of saltwater clam, a marine bivalve mollusc in the family Glycymerididae, the bittersweet clams.

Quick Facts Scientific classification, Binomial name ...

Synonyms

  • Arca insubrica Brocchi, 1814
  • Arca nummaria Linnaeus, 1758
  • Glycymeris insubrica (Brocchi, 1814)
  • Glycymeris violacescens (Lamarck, 1819)
  • Pectunculus cor Lamarck, 1805
  • Pectunculus nudicardo Lamarck, 1819
  • Pectunculus obliquatus Rayneval & Ponzi, 1854
  • Pectunculus pilosellus Risso, 1826
  • Pectunculus purpurascens M' Andrew, 1854
  • Pectunculus reticulatus Risso, 1826
  • Pectunculus transversus Lamarck, 1819
  • Pectunculus zonalis Lamarck, 1819

Description

  • Fossil (Quarternary)
  • Fossil (Pliocene)

The shell of an adult Glycymeris nummaria can be as large as 60 millimetres (2.4 in). It is quite thick, almost circular in shape, with a sculpture of radiating striae and fine concentric lines. The surface is dull and may be dark or pale brown, but also whitish-yellowish. Inside of the shell is glossy, white or pale yellow, often with irregular brown markings.

Distribution and habitat

This species is widespread from Norway to the Mediterranean Sea. It lives in sandy-muddy gravels offshore to depths of about 100 metres (330 ft).

References

    • Najdek M., Ezgeta-Balić D., Blažina M., Crnčević M. & Peharda M. (2016). "Potential food sources of Glycymeris nummaria (Mollusca: Bivalvia) during the annual cycleindicated by fatty acid analysis". Scientia Marina 80(1): 123-129. doi:10.3989/scimar.04267.23A.
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    This article uses material from the Wikipedia article Glycymeris_insubrica, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.