Donacilla cornea (Poli, 1791)
Mactroidea : Mesodesmatidae |
| Tebble name: | n/a |
| Smith & Heppell name: | Donacilla cornea (Poli, 1795) |
To size: To 24mm. Shell Structure: Thick, solid, robust. Equivalve: Equivalve. Equilateral: Inequilateral, beaks to anterior. Tumidity: Not tumid. Outline: Triangular to wedge-shaped. Anterior dorsal margin shorter than posterior, which is almost straight. Smaller specimens are more wedge-shaped, becoming almost triangular as they age.
Sculpture: Fine concentric lines. Growth stages clear. Margin: Smooth. Ligament: External, dark-brown, thin half length of posterior dorsal margin and slightly in front of beaks. Internal sits on crescent-shaped chondrophore, is mid-brown and shiny and exists in old specimens. Hinge: RV two cardinals and single anterior and posterior laterals. LV one cardinal behind chondrophore, double anterior and posterior laterals. the lower posterior is thickened and could be mistaken for a cardinal tooth, but on pairing the valves the RV lateral fits in between the laterals. Pallial Musculature: fairly deep pallial sinus to beneath beaks. Periostracum: Thin, yellowy-brown. Colour: White, yellow, some with radiating rays in light brown-orange, some with patches of dark blue-purple.
Distribution & Ecology
Depth Range
Intertidal
Additional Information & Related Species
Related Species
Mactroidea : Mesodesmatidae
References
Listed are literature citing Donacilla cornea (Poli, 1791). Reference containing the species Type Description is highlighted.
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Poli J X 1791. Testacea Utriusque Siciliae eorumque historia et anatome. Vol.1 Parma, Regio Typographeio. 1-74, pls 1-18. |
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Whiteley D A A, Owen D F & Smith D A S 1997. Massive polymorphism and natural selection in Donacilla cornea (Poli, 1791) (Bivalvia: Mesodesmatidae). Biological Journal of the Linnean Society. 62 (4): 475-494. |
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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