Pisinna glabrata (von Mühlfeld, 1824) |
Azores to Mediterranean, to Canarias. Introduced in Brittany. Grazer and detritus feeder. Original taxon: Helix glabrata. Synonyms: punctulum, sabulum… Epifaunal of some brown algae in the upper infralittoral. Recently, a new feeding behaviour has been noticed, implying detritus of Caulerpa racemosa (Forsskål) Agardh. Playa de Cap Ras, Llançà, Girona, Catalunya, NE. Spain. 1,2-1,5mm. |
A species rather constant in all its characteristics. Cap Ras, Llançà, NE. Catalunya, NE. Spain. 1,4mm. |
3-6m deep, near small Posidonia patches in rough sand pockets near the shore, SW. end of Ghjunchitu Bay, Isola Rossa, NW. Corsica. 1,5mm. |
Specimens from Playa de Cap Ras, Llançà. 1-1,5mm. |
Le Scole, south of the harbour, Isola del Giglio, Toscana, W. Italy. 1,3mm. |
Notice the spiral rows of minute buttons that run on the surface of the protoconch, and the subsutural bead that appears from the very first whorl of the teleoconch. |
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