Abra prismatica (Montagu, 1808)
Iceland and Norway to Barents Sea, to Mediterranean.
Deposit feeder, in coarse sendiment from the infralittoral (north) down to the continental margin.
Original taxon: Ligula prismatica. A synonym is fragilis Risso.
 
Outline elongate, « posterior dorsal margin short, giving beak-like appearance to posterior, anterior dorsal margin long, almost straight to rounded anterior margin. » (MBSBI). Beaks opistogyrate. – 50m deep, Poetto, Cagliari, S. Sardinia. 7,7mm.
Microsculpture made of thin growth lines. Same spot. 10mm.
30m deep, in front of Sustipan park, Split, S. Croatia. 13mm. Original pictures provided by N. Lete (HR).
– (CC BY-NC-SA) –

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