Obovaria subrotunda explained

Obovaria subrotunda, commonly called the round hickorynut, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.

Distribution and conservation status

This species is native to eastern North America.

The Canadian Species at Risk Act listed it in the List of Wildlife Species at Risk as being endangered in Canada.^[1]

It was listed as a federally threatened species of the United States under the Endangered Species Act in 2023.^[2]

Notes and References

1. COSEWIC. 2005. Canadian Species at Risk. Committee on the Status of Endangered Wildlife in Canada. 64 pp., page 13.
2. Web site: Round hickorynut (Obovaria subrotunda). Environmental Conservation Online System. U.S. Fish & Wildlife Service. 2 December 2023.