Rhomboidella prideauxi (Leach, 1815)
Mytiloidea : Mytilidae |
| Tebble name: | Crenella prideauxi (Leach) |
| Smith & Heppell name: | Rhomboidella prideaux (Leach, 1815) |
To size: Very small to 4mm. Shell Structure: Robust, opaque. Equivalve: Equivalve. Equilateral: Inequilateral beaks close to the anterior margin. Tumidity: Tumid. Outline: Outline modioliform (rhomboidal – subquadrate); umbos prominent; ventral margin long straight, posterior margin long straight or indented, posterior dorsal (ligament) margin straight about half length of ventral margin. Contour: Dorsal area set off by a low rounded posterior angle
Prodissoconch very large, sculpture distinct from adult shell and forming an apparent smooth area over the umbo; prodissoconch I about 345μm in diameter, weakly dimpled; prodissoconch II about 665μm in diameter with regular concentric bands.
Sculpture: Radial sculpture of up to 50 riblets these the strongest along the median slope and much weaker on the ventral area; concentric sculpture of up to 10 thin lamellar ridges, these fluted at intersections with radial riblets. Margin: Inner margin evenly crenulated. Ligament: Ligament interior situated behind the beaks and extending for half the length of the posterior dorsal margin. Hinge: Hinge plate with an irregularly crenulated swollen area beneath the beaks; ligament margin with up to 15 dysodont teeth. Pallial Musculature: Adductor scars of about equal size. Periostracum: Indistinct. Colour: White.
Distribution & Ecology
Predominantly sublittoral to moderate shelf depths. Attached by a byssus, probably nestling on hard or coarse substrates with epifauna.
Depth Range
Continental Shelf (to 200m)
Additional Information & Related Species
Related Species
Mytiloidea : Mytilidae
References
Listed are literature citing Rhomboidella prideauxi (Leach, 1815). Reference containing the species Type Description is highlighted.
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Davoult D, Dewarumez J M & Glacon R 1992. Nouvelles signalisations d’especes macrobenthiques sur les cotes francaises de la Manche orientale er de la Mer du Nord. II Mollusques. New records of macrobenthic species off the French coasts of west Channel and of the North Sea II. Molluscs. Cahiers de biologie marine. 33(1): 95-100. |
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Leach W E 1815. Zoological miscellany: being descriptions of new or interesting animals London. |
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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