Species Account

Mya truncata Linnaeus, 1758

Myoidea : Myidae

Tebble name: Mya truncata Linnaeus
Smith & Heppell name: Mya truncata L.,1758

To size: To 80mm. Shell Structure: Solid. Equivalve: Inequivalve, RV slightly more convex than LV. Equilateral: Subequilateral beaks just behind the midline. Outline: Oblong, elongate; anterior broadly rounded, ventral rather straight; posterior ventral and posterior dorsal margins short, posterior truncate gaping widely.

Sculpture: Of co-marginal lines and low ridges with occasional faint radial lines. Margin: Inner margin smooth. Ligament: Primarily internal on a large spoon shaped projecting chondrophore in LV and corresponding concealed resilifer beneath the umbo in RV. Small external part, concealed and attached to posterior part of chondrophore. Hinge: Hinge without teeth. Pallial Musculature: Pallial sinus deep extending to beneath the beaks, lower arm irregularly confluent with pallial line. Periostracum: Persistent, straw coloured to dark brown. Colour: Shell white.

Distribution & Ecology

A deep burrower in sand and sandy mud. From low in the intertidal to shallow shelf depths of about 70m. Widespread.

Depth Range
Intertidal
Continental Shelf (to 200m)

Additional Information & Related Species

Juvenile Description

The juveniles lack the truncate posterior and closely resemble M. arenaria.

Related Species

References

Listed are literature citing Mya truncata Linnaeus, 1758. Reference containing the species Type Description is highlighted.

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: 22/03/2016