 Guldborgsund (Strait between islands of Lolland and Falster), SE Denmark M012007 |
 Stege Fjord, Island of Mon (Moen), SE of Sjaelland (Zealand) Sept 4 1919 M012001 |
 Guldborgsund (Strait between islands of Lolland and Falster), SE Denmark M012002 |
 Guldborgsund (Strait between islands of Lolland and Falster), SE Denmark M012004 |
 Guldborgsund (Strait between islands of Lolland and Falster), SE Denmark M012005 |
 Guldborgsund (Strait between islands of Lolland and Falster), SE Denmark M012006 |
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NMW Image No.
Parvicardium hauniense (Petersen & Russell, 1971)
Cardioidea : Cardiidae| Tebble name: | n/a |
| Smith & Heppell name: | Parvicardium hauniense (Petersen & Russell, 1971) |
To size:
To 5mm.
Shell Structure:
Thin.
Equivalve:
Equivalve.
Equilateral:
Inequilateral, beaks in front of midline.
Tumidity:
A liitle inflated.
Outline:
Obliquely oval, expanded posteriorly; posterior dorsal margin straight angled to long almost straight posterior; anterior rounded narrower than posterior ventral curvature.
Contour:
Posterior angle rounded but distinct.
Sculpture:
22-27 radial ribs those on the anterior and posterior fading towards dorsal margins; ribs low rather flat and equal in width with interspaces. Occasionally with a few blunt spines on the posterior dorsal ribs mostly in young shells.
Margin:
Crenulate.
Ligament:
Parivincular, short, sitting on a prominent nymph.
Hinge:
Weak; RV with anterior and posterior paired laterals and two small cardinals; LV with single almost marginal laterals and two small cardinals.
Pallial Musculature:
Indistinct.
Colour:
Reddish brown and olive, ribs often darker than interspaces, some maculated overall.
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Distribution & Ecology
Intertidal and shallow water in lower salinity sites. Restricted to the Baltic. Records from other localities have been shown to be juvenile Cerastoderma glauca.
Depth Range
Intertidal
Continental Shelf (to 200m)
Juveniles & Similar Species
Juvenile Description
Key Features & Similar Species
Lives with Cerastoderma glauca and can be confused with juveniles of that species but is distinctly oblique in outline. Also close to some forms of P. exiguum but this species has fewer, stronger ribs, never more than 22.
Additional Comments
References
Listed are literature citing Parvicardium hauniense (Petersen & Russell, 1971). Reference containing the species Type Description is highlighted.
|
Høpner Petersen G & Russell P 1971. Cardium hauniense nov. sp. a new brackish water bivalve from the Baltic. Ophelia. 9: 11-13. |
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Jelnes J.E., Høpner Petersen G. & Russell P.J.C. 1971. Isozyme taxonomy applied on four species of Cardium from Danish and British waters with a short description of the distribution of the species. (Bivalvia). Ophelia. 9: 15-19. |
Resources
Downloads
Weblinks
- 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.