| Eastonia rugosa (Helbling, 1779) |
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| A west african species, found from Guinea to Galicia, Cabo Verde, Canarias, to central Mediterranean: Sicily, Sardinia. Lives buried in soft bottoms of the infralittoral. Original taxon: Mactra rugosa. Synonym locardi. Trawled off Málaga, Andalucia, S. Spain. 58mm. |
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| Mactra rugosa in L. A. Reeve: Conchologia iconica vol. VIII, London 1855. « Shell transversely ovate, gibbous, gaping at each end, very inequilateral, brownish-white, chalky, radiately irregularly ridged, smooth at the extremities, anterior side very short, rounded, posterior oblong, produced ; umboes small, appressed, close. » |
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| Quite variable in shape, but not in sculpture. Beached, on sand, Porto Grande di Siracusa, Sicily. 76mm. |
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| Mactra rugosa in G. S. Helbling: “Contributions to the knowledge of new and rare shells” in Abhandlungen einer Privatgesellschaft in Böhmen…, vol. 4, Prague 1779, via GDZ. |
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| Eastonia rugosa in J. G. Hidalgo: Moluscos marinos de España, Portugal y las Baleares plate VI, Madrid 1870, via BHL. |
| — back to Mactridae — |