Species Account

Isognomon bicolor (Adams, 1845)

Pterioidea : Pteriidae

Non-native
Tebble name: n/a
Smith & Heppell name: n/a

To size: To 35 mm. Shell Structure: Robust valves, flaky, fragile at ventral margin. Equivalve: Slightly inequivalve. Equilateral: Inequilateral. Tumidity: Compressed. Outline: Irregular oblique ov.

Sculpture: Smooth or with flaky commarginal lamellae. Margin: Irregular but smooth margin. Ligament: Multiple set in grooves along straight dorsal margin. Hinge: Hinge edentulous. Pallial Musculature: One large adductor large muscle. Colour: White with purple tinge, may be brown to purple brown. Internal nacreous.

Distribution & Ecology

From Florida to Brazil.

4 specimens attached to plastic spool, Chesil Beach, Dorset.

Depth Range
Intertidal
Continental Shelf (to 200m)

Additional Information & Related Species

Related Species

References

Listed are literature citing Isognomon bicolor (Adams, 1845). Reference containing the species Type Description is highlighted.

Adams C.B. 1845. Specierum novarum conchyliorum, in Jamaica repertorum, synopsis.. Proceedings of the Boston Society of Natural History. 2: 1-17.
Holmes A.M., Oliver P.G., Trewhella S, Hill R. & Quigley D.T.G. 2015. Trans-Atlantic rafting of inshore mollusca on macro-litter. American molluscs on British and Irish shores, new records.. Journal of Conchology . 42 (1): 41-49.

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: 13/05/2016