Parvicardium hauniense (Petersen & Russell, 1971)
Cardioidea : Cardiidae
Inequilateral, beaks in front of midline.
A liitle inflated.
Obliquely oval, expanded posteriorly; posterior dorsal margin straight angled to long almost straight posterior; anterior rounded narrower than posterior ventral curvature.
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.
Distribution & Ecology
Continental Shelf (to 200m)
Additional Information & Related Species
Key Features & Similar Species
Cardioidea : Cardiidae
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.
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.
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