Species Account

Aequipecten opercularis (Linnaeus, 1758)

Pectinoidea : Pectinidae

Tebble name: Chlamys (Aequipecten) opercularis (Linnaeus)
Smith & Heppell name: Aequipecten opercularis (L., 1758)

To size: To 90mm. Shell Structure: Solid. Equivalve: Inequivalve, upper left valve more convex than lower right valve. Equilateral: Equilateral. Outline: Subcircular, ears almost equal, anterior slightly larger. Contour: Byssal notch small, ctenolium present.

Sculpture: Of 19-22 low rounded radial ribs, these weakly radially striated and with fine co-marginal lines and weak ridges. Margin: Crenulate. Colour: Highly variable, shades of red to brown, yellow and purple all with irregular patterns of streaks and blotches.

Distribution & Ecology

Adults free living on sandy to shelly bottoms. From the sublittoral and across the shelf. Widespread.

Distributed from northern Norway and Faroes to the Iberian Peninsula, Canaries and Azores and the Mediterranean.

Depth Range
Continental Shelf (to 200m)

Additional Information & Related Species

References

Listed are literature citing Aequipecten opercularis (Linnaeus, 1758). Reference containing the species Type Description is highlighted.

Dijkstra H, Warén A & Gudmunsson G 2009. Pectinoidea (Mollusca: Bivalvia) from Iceland. Marine Biology Research. 5: 207-243.
Dijkstra H.H. 1999. Type specimens of the Pectinidae (Mollusca: Bivalvia) described by Linnaeus (1758-1771). Zoological Journal of the Linnean Society. 125: 383-443.
Dijkstra HH & Gofas S 2004. Pectinoidea (Bivalvia: Propeamussidae and Pectinidae) from some northeastern Atlantic seamounts. Sarsia. 89 (1): 33-78.
Dijkstra HH & Goud J 2002. Pectinoidea (Bivalvia, Propeamussiidae & Pectinidae) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern region of the North Atlantic Ocean. Basteria. 66: 31-82.
Linnaeus C 1758. Systema Naturae. Editio decima. 1. Regnum Animale Holmiae, Laurentii Salvii. 824pp.

Resources

  • Conchological Society of Great Britain & Ireland
    Provides resources for understanding, identifying, recording, and conserving molluscs
  • CLEMAM
    Check List of European Marine Mollusca
  • MarLIN
    The Marine Life Information Network for Britain and Ireland (MarLIN) provides information for marine environmental management, protection and education. It is a centre of excellence in spatially based and time-series marine biological information and supports good stewardship in the marine environment.
  • NBN Gateway
    National Biodiversity Network's Gateway. Use it to explore UK biodiversity data, as contributed by participating data providers.
  • BivAToL
  • MarBEF
  • Malacological Society
  • Unitas Malacologica
  • Census of Marine Life
  • MarBEF
    MarBEF, a network of excellence funded by the European Union and consisting of 94 European marine institutes, is a platform to integrate and disseminate knowledge and expertise on marine biodiversity, with links to researchers, industry, stakeholders and the general public.

Record last modified: 17/05/2016