Thyasira biplicata (Philippi, 1836)
Norway to Mediterranean, on the continental shelf and slope. Chemosymbiotic. Original taxon: Ptychina biplicata.
The posterior margin is strongly sinuose.
150m deep, Palagruža islands, Central Adriatic. 10mm.
Original pictures provided by N. Lete (HR).
(CC BY-NC-SA)

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