Anadara gibbosa (Reeve, 1844)
Galicia to Mediterranean. Original taxon: Arca gibbosa.
30m deep, Málaga, Andalucia, S. Spain. 35mm.
80-110m deep, on mud, off San Carlos de la Rapita, Tarragona, Catalunya, NE. Spain. 32mm.
Arca gibbosa — « Shell rotundately oval, very gibbous, equivalve, sides rather angulated, rounded beneath, anterior side shorter ; white, covered with a brown epidermis ; radiately ribbed, ribs six or seven and twenty in number, round, narrow, slightly nodulous ; ligamentary area middling. » – L.A. Reeve: Conch. iconica vol. II, plate 4 via BHL.

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