Thracia convexa (W Wood, 1815)
Thracioidea : Thraciidae |
| Tebble name: | Thracia convexa (W Wood) |
| Smith & Heppell name: | Thracia convexa (W Wood, 1815) |
To size: To 70mm. Shell Structure: Thin, brittle. Equivalve: Almost equivalve, right valve slightly larger than left. Equilateral: Inequilateral, beaks posteriorly orthogyrate. Beak of LV sits in hole in RV. Outline: Subtrigonal, posterior dorsal margin convex to a narrowly rounded posterior margin. Ventral margin almost straight, leading to a narrowly rounded anterior margin. Anterior dorsal margin is convex but rises higher than posterior. umbonal region very tumid. Contour: Ridge runs from dorsal to ventral margin posteriorly.
Sculpture: Concentric lines very close together on most of the shell but are fewer on posterior region. Margin: Smooth. Ligament: External and internal; external short dark brown arch behind beaks, internal on a short resilifer. Hinge: Lithodesma short, thin and often lost. Pallial Musculature: Pallial sinus shallow, around a third the length of shell. Not confluent. Periostracum: Pale brown/beige. Colour: White.
Distribution & Ecology
Depth Range
Continental Shelf (to 200m)
Additional Information & Related Species
Related Species
Thracioidea : Thraciidae
References
Listed are literature citing Thracia convexa (W Wood, 1815). Reference containing the species Type Description is highlighted.
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Soot-Ryen T 1941. Northern Pelecypods in the collection of Tromsø Museum I Order Anomalodesmacea Families Pholoadomyidae. Thraciidae and Periplomatidae. Tromsø Museums Arshefter Naturhistorisk Avd. Nr. 17. 61: 1-41, 10 pls. |
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Wood W 1815. General conchology or a description of shells, arranged according to the Linnean system, London p. 92, pl 18 Fig 1. |
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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