Isognomon bicolor (Adams, 1845)
Pterioidea : Isognomonidae | 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)
4 specimens attached to plastic spool, Chesil Beach, Dorset.
Depth Range
Intertidal
Continental Shelf (to 200m)
Additional Information & Related Species
Related Species
Pterioidea : Isognomonidae
References
Listed are literature citing Isognomon bicolor (Adams, 1845). Reference containing the species Type Description is highlighted.
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Adams C.B. 1845. Specierum novarum conchyliorum, in Jamaica repertorum, synopsis.. Proceedings of the Boston Society of Natural History. 2: 1-17. |
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Breves, A., Scarabino F. & Leoni V. 2014. First records of the non-native bivalve Isognomon bicolor (CB Adams, 1845) rafting to the Uruguayan coast. http://dx.doi.org/10.15560/10.3.684. Checklist of the Journal of Biodiveristy data. 10(3): 684-6. |
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Britton, J.C. 1975. The shallow water marine mollusks of the Swan Islands, Honduras. Bulletin of the American Malacological Union. 1975: 33-40. |
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Domaneschi O. & Mantovani Martins C. 2002. Isognomon bicolor (CB Adams) Bivalvia: Isognomonidae): first record to the Brazilian littoral, redescription of the species and comments on the occurrence and distribution of Isognomon in the Brazilian Coast. http://dx.doi.org/10.1590/S0101-81752002000200017. Revista Brasileira de Zoologia. 19(2): |
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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.
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Record last modified: 03/03/2022