Macoma calcarea (Gmelin, 1791)
Tellinoidea : Tellinidae |
| Tebble name: | n/a |
| Smith & Heppell name: | Macoma calcarea (Gmelin, 1791) |
To size:
To 45mm.
Shell Structure:
Thick, calcareous, brittle.
Equivalve:
Inequivalve: LV slightly larger than RV.
Equilateral:
Inequilateral. Beaks to posterior.
Tumidity:
Not tumid.
Outline:
Sub-ovate to wedge-shaped, flexed to the right. Anterior dorsal margin broadly curved, posterior margin shorter and almost straight.
Contour:
Slight anterior and posterior gape.
Sculpture:
Unevenly spaced concentric ridges.
Margin:
Smooth.
Ligament:
Mid-brown arched band extending half the length of the posterior dorsal margin.
Hinge:
Two cardinals in each valve, in RV posterior bifid, in LV anterior bifid. No laterals.
Pallial Musculature:
Pallial sinus deeper in LV than RV and tongue-shaped rather than mitten-shaped as in RV. Cruciform scars barely visible.
Periostracum:
Mid-brown and flaky.
Colour:
creamy white.
Distribution & Ecology
Depth Range
Continental Shelf (to 200m)
Additional Information & Related Species
Key Features & Similar Species
M. calcarea, subovate, posterior subacute
M. torelli, trigonal
M. moesta, subovate, posterior subtruncate, compressed
M. loveni, subovate, posterior subtruncate, inflated
Related Species
Tellinoidea : Tellinidae
References
Listed are literature citing Macoma calcarea (Gmelin, 1791). Reference containing the species Type Description is highlighted.
|
Gmelin J F 1791. Carli Linnaei systema Naturae per regna tria naturae. Editio decimatertia, aucta, reformata, Vermes Testacea 1 (6). Lipsiae. 3021-3910. |
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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