Subclass Heterodonta Suborder Sphaeriacea Rank Species | Order Veneroida Higher classification Pisidium | |
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Similar Pisidium, Pisidium lilljeborgii, Pisidium milium, Molluscs, Pisidium hibernicum | ||
The arctic-alpine pea clam, (Pisidium conventus) is a species of freshwater bivalve from family Sphaeriidae.
Contents
Description
The small (2.2-2.8 mm.) shell is oval in shape and thin and fragile. It is broad and flattened (laterally compressed) with flattened umbos near the midpoint. The colour is yellowish-white and the periostracum (surface) is silky with fine, concentric striation.
Ecology
P. conventus is a relict of colder climatic periods found only in deep, cold, upland lakes.
Distribution and conservation status
References
Pisidium conventus Wikipedia(Text) CC BY-SA