Stiff penshell

Weight

Not recorded

Length

Not recorded

Lifespan

Not recorded

Main food

Not recorded

Habitat

Not recorded

Young per litter or clutch

Not recorded

Conservation status

Not recorded

Countries on record

Not recorded

Not recorded

No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.

1. kingdomAnimalia
2. phylumMollusca
3. classBivalvia
4. orderOstreida
5. familyPinnidae
6. genusAtrina
7. SpeciesAtrina rigida ([Lightfoot], 1786)

Synonyms Atrina rigida, Pinna carolinensis, Pinna rigida

Catalogue of Life

CompareStiff penshell vs Fan musselStiff penshell vs Fan musselStiff penshell vs Half-naked penshellStiff penshell vs Sawtooth penshell

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• Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
  Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence).
• EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
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@misc{stiff_penshell_2026,
  title = {Stiff penshell (Atrina rigida)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/stiff-penshell},
  note = {Data as of 2026-11-11}
}