Stiff Pen Shell (Atrina rigida)

Stiff Pen Shell, a reference photo — Photo: FWC Fish and Wildlife Research Institute · CC BY 2.0 (licence)

Atrina rigida, commonly called the rigid pen shell, is a species of bivalve mollusk in the family Pinnidae.

Is it venomous or poisonous?

We have no record of Stiff Pen Shell 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

Atrina seminuda
Pinna dolabrata
Atrina zelandica
Atrina fragilis
Atrina squamifera
Atrina serrata

Classification

Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Ostreida
Family: Pinnidae
Genus: Atrina
Species: Atrina rigida

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