On sediments, from subtidal to bathyal depths.
Original taxon: Dentalium dentale.
Synonyms: affinis, lineanum, mutabile.
10m deep, on sand, Cagliari gulf, S. Sardinia. 25-31mm.
10 ribs near apex, twice near aperture. Shell translucent, often pink near apex, which is “thick-walled” (Bernd Sahlmann).
« Shell red, arcuated, subulate, showing eighteen to twenty narrow projected costae, between which appears a smaller one. These costae usually extend from the spike to the basis; in some specimens, they lessen imperceptibly and disappear near the aperture [like on the drawing above]; they are raised, rounded and constant; the summit is acute, subulate, punctured with a minute hole; the aperture is round, slightly oblique; its margins are very thin and sharp. »
