Original taxon: Lacuna tenella.
Indeed, this is the most lacuniform of all the members of the genus. The epithet (sweet, delicate) reflects the sculpture, made of numerous thin growth-marks that are crossed, on the body-whorl, by some rare and extremely thin spirals.
1000m deep, Capo Teulada, SW. Cagliari, S. Sardinia. 2mm.
One of the most common gastropods in the deep northern Atlantic. Protoconch coloured. Some marked radial sculpture appears at the beginning of the first teleoconch whorl.