Idas simpsoni (Marshall, 1900)
Mytiloidea : Mytilidae |
| Tebble name: | Adula simpsoni (Marshall) |
| Smith & Heppell name: | Adipicola simpsoni (Marshall, 1900) |
To size: To 40mm. Shell Structure: Thin. Equivalve: Equivalve. Equilateral: Inequilateral beaks at about 1/5 of shell length from anterior. Tumidity: A little inflated, umbos low but shell expansion greatest behind umbos. Outline: Submodioliform, elongate, with anterior distinctly more narrow than posterior; dorsal and ventral margins of about equal length, ventral subparallel to dorsal; ventral margin long slightly to distinctly incurved, dorsal margin gently curved, anterior dorsal margin sloping downwards making rounded anterior projecting, posterior broadly curved. Contour: Posterior angle distinct but rounded; median area a little depressed.
Sculpture: Smooth with a few growth lines, larger shells with a few radial lines on the median depression. Margin: Inner margin smooth. Ligament: Large, on a wide sunken, resilifer behind the beaks extending about 2/3 the length of the posterior dorsal margin. Hinge: Hinge plate narrow apparently smooth in large shells but in smaller shells with a few small dysodont teeth behind the ligament and 1-3 irregular crenulae below the beaks. Pallial Musculature: Anterior adductor scar only a little smaller than posterior, this with a small dorsal extension (byssus retractor scar). Periostracum: Persistent, glossy golden yellow to olive-brown in larger shells. Colour: White.
Distribution & Ecology
Depth Range
Continental Shelf (to 200m)
Additional Information & Related Species
Related Species
Mytiloidea : Mytilidae
References
Listed are literature citing Idas simpsoni (Marshall, 1900). Reference containing the species Type Description is highlighted.
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Bolotin J., Hrs-Brenko M., Tutman P., Glavic N., Kozul V., Skaramuca B., Lucic D. & Dulcic J. 2005. First record of Idas simpsoni (Mollusca: Bivalvia: Mytilidae) in the Adriatic Sea. Journal of the Marine Biological Association of the United Kingdom. 85: 977-978. |
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Marshall J T 1900. On a British species of Myrina, with a note on the genus Idas. Journal of Malacology. 7: 167-170. |
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Oliver PG & Holmes AM 2009. Idas lamellosus Verrill, 1881 (Bivalvia: Mytiloidea) a woodfall mussel new to the fauna of the northeast Atlantic. Journal of Conchology. 39 (6): 705-708. |
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Southward E C 2008. The Morphology of bacterial symbioses in the gills of mussels of the genera Adipola and Idas (Bivalvia: Mytilidae). Journal of Shellfish Research. 27(1): 139-146. |
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Warén A 1991. New and little known Mollusca from Iceland and Scandinavia. Sarsia. 76: 53-124. |
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Warén A. & Carrozza F. 1990. Idas ghisotti sp.n., a new mytilid bivalve associated with sunken wood in the Mediterranean. Bollettino Malacologico. 26: 19-24. |
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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