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.

References

  1. ^ Bogan, A.E.; et al. (Mollusc Specialist Group) (2000). "Pleurobema nucleopsis". IUCN Red List of Threatened Species. 2000: e.T17688A7323821. doi:10.2305/IUCN.UK.2000.RLTS.T17688A7323821.en. Retrieved 17 November 2021.
Allikas: http://en.wikipedia.org/wiki/Pleurobema_nucleopsis
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