Lives in sand, muddy sand and muddy gravel, from the low intertidal down to shelf depths (MBSBI).
Original taxon: Amphidesma phaseolina. Previously known under the epithet of papyracea Poli, junior synonym of a papyracea by Gmelin and thus invalid.
Above and below:
70-80m deep, off Málaga, Andalucia, S. Spain. 26-30mm.
« The little boat Thracia: Shell oblong, slightly convex, thin, fragile, posteriorly concavely angled, subtruncated, anteriorly attenuately oval ; concentrically finely striated ; white, comparatively shining, scarcely scabrous. » – L. A. Reeve: Conchologia iconica, London 1860, via BHL.
Other synonyms: declivis, mitella, textilis…
