Pleurobema rubrum, the pyramid pigtoe, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Pleurobema rubrum | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Bivalvia |
Order: | Unionida |
Family: | Unionidae |
Genus: | Pleurobema |
Species: | P. rubrum
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Binomial name | |
Pleurobema rubrum Rafinesque, 1820
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This species is endemic to the United States. Its habitat is in medium to large rivers in sand or gravel. Specimens are generally 4 inches (10 cm) long with a chestnut, thick shell.[2]