Alasmidonta marginata

Elktoe, a reference photo
Photo: Dick Biggins, U.S. Fish and Wildlife Service · Public domain

The elktoe (Alasmidonta marginata) is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is found in southeastern Canada and the eastern United States. Like many mussels, it is threatened by water pollution from agriculture, industry, and other development, such as acid mine drainage and sedimentation. It may be extinct in Oklahoma.

From Wikipedia, under CC BY-SA 4.0.

Is it venomous or poisonous?

We have no record of Elktoe being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

Classification

Kingdom
Animalia
Phylum
Mollusca
Class
Bivalvia
Order
Unionida
Family
Unionidae
Species
Alasmidonta marginata

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