Parvicardium exiguum var subangulatum (Scacchi, 1833)
Cardioidea : Cardiidae |
| Tebble name: | Parvicardium exiguum (Gmelin) |
| Smith & Heppell name: | Parvicardium exiguum (Gmelin, 1791) |
To size: To 10mm. Shell Structure: Thin but robust. Equivalve: Equivalve. Equilateral: Inequilateral, beaks distinctly in front of the midline. Tumidity: Moderate. Outline: Sub quadrate; anterior dorsal margin very short sloping and a little excavated; posterior dorsal margin short. Posterior margin long, almost straight; ventral margin gently curved, anterior roundly angled. Contour: Posterior angle distinct, posterior area broad and flattened. Lunule oval, smooth.
Sculpture: As typical form but largely lacking any nodules or spines on ribs. Margin: Crenulated by interlocking ribs and interspaces. Furrows extending into the umbonal cavity in most specimens. Ligament: Prominent, on short nymph. Hinge: Weak, RV with 2 anterior laterals, 1 posterior lateral, 2 cardinals. LV with single anterior and posterior laterals and 2 cardinals. Pallial Musculature: Obscure. Periostracum: Persistent often as a fringe on the ribs. Colour: Mostly coloured mottled, tan, greenish brown, darker brown.
Distribution & Ecology
Depth Range
Intertidal
Continental Shelf (to 200m)
Additional Information & Related Species
Additional Comments
Similar in outline and contour but a thinner shell largely lacking nodules and incisions. Mostly coloured mottled, tan, greenish brown darker brown.
Related Species
Cardioidea : Cardiidae
References
Listed are literature citing Parvicardium exiguum var subangulatum (Scacchi, 1833). Reference containing the species Type Description is highlighted.
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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