| 词条 | Longnut |
| 释义 |
| name = Longnut | image = | status = EX | status_system = IUCN2.3 | regnum = Animalia | phylum = Mollusca | classis = Bivalvia | ordo = Unionoida | familia = Unionidae | genus = Pleurobema | species = P. nucleopsis | binomial = Pleurobema nucleopsis | binomial_authority = (Conrad, 1849) | synonyms = }} The longnut (Pleurobema nucleopsis) was a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species was endemic to the United States. Its natural habitat was rivers. Sources
5 : Bivalves described in 1849|Extinct bivalves|Extinct animals of North America|Pleurobema|Taxonomy articles created by Polbot |
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