Turbonilla gradata Bucquoy, Dautzenberg & Dollfus, 1883 |
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W. Mediterranean. Ectoparasit in the infralittoral-circalittoral. 50m deep, Scilla, Messina Strait, SW. Italy. 4,4mm. |
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Synonym: pseudogradata Nordsieck. Peyrefite Cape, Cerbère, Eastern Pyrenees, S. France. 2,9mm. |
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Shell scalariform, subcylindrical. Protoconch of type A. Whorls flat, adorned with opisthocline and slightly sinuous axial ribs a little wider than the furrows that separate them from each other; the axials rapidly vanish slightly below the periphery of the last whorl. 25m deep, in sediments, at the base of a rocky wall between Sapri and Acquafredda, Campanian border, SW. Italy. 3,8mm. |
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40m deep, off Le Scole, south of the harbour, Isola del Giglio, Toscana, W. Italy. 2,5mm. |
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