American Stiff Pen Shell (Atrina rigida Lightfoot, 1786): Byssal Threads

Stiff Pen Shell (Atrina rigida) · iNaturalist Australia

Stiff Pen Shell (Atrina rigida)

Atrina - Alchetron, The Free Social Encyclopedia

Atrina rigida (Lightfoot, 1786) - Stiff pen shell (Marine bivalve

Worldwide overview of reproduction, juvenile collection, spat

American Stiff Pen Shell (Atrina rigida Lightfoot, 1786): Byssal

Stiff Pen Shell: Atrina rigida (Lightfoot, 1786)

M-650 PEN SHELL, Atrina rigida or A. serrata - Gulf Specimen

Penshells, Iridescent Fan Shaped Shells, Choice: 30 Pcs 2-3 or 20