Arcopagia crassa (Pennant, 1777)
Tellinoidea : Tellinidae |
| Tebble name: | Tellina (Arcopagia) crassa (Pennant) |
| Smith & Heppell name: | Arcopagia crassa (Pennant, 1777) |
To size:
To 65mm.
Shell Structure:
Solid.
Equivalve:
Inequivalve, RV more convex than LV.
Equilateral:
Almost equilateral, beaks just behind midline.
Tumidity:
Not tumid.
Outline:
Broadly ovate with a slight flex in the posterior from the umbonal region. Lunule chestnut-brown depression with radial grooves. Escutcheon absent.
Sculpture:
Evenly spaced concentric lines/grooves.
Margin:
Smooth.
Ligament:
Prominent dark brown band extending halfway to posterior margin.
Hinge:
2 cardinals in each valve; in LV anterior bifid, in RV posterior bifid. Anterior and posterior lateral in both valves.
Pallial Musculature:
Pallial sinus deep, extending past the midline and angled towards the top of the anterior adductor.
Cruciform muscles sometimes visible towards posterior ventral margin near the end of the pallial line.
Periostracum:
Thin, matt, yellow-brown.
Colour:
White/cream with orange/red-brown colouration at the umbones and extending as rays to the ventral margin. Internal white, with orange colouration in umbonal area and extending ventrally.
Distribution & Ecology
Depth Range
Intertidal
Continental Shelf (to 200m)
Additional Information & Related Species
Juvenile Description
Key Features & Similar Species
Related Species
Tellinoidea : Tellinidae
References
Listed are literature citing Arcopagia crassa (Pennant, 1777). Reference containing the species Type Description is highlighted.
|
Pennant T 1777. British Zoology vol.IV. Crustacea, Mollusca, Testacea London, B. White. 154pp, 93pls. |
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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