Amphissa acutecostata

Amphissa acutecostata is a species of sea snail, a marine gastropod mollusc in the family Columbellidae, the dove snails.

Description
The length of the shell varies between 5 mm and 8 mm, its diameter between 2 mm and 3 mm.

It shows a close resemblance to Oenopota pyramidalis (Strøm, 1788) (synonym: Bela pyramidalis), but it is smaller and shorter. The spire is less acuminate. The body whorl is higher. The aperture is not as high. The shell contains less longitudinal ribs, which become obsolete at the body whorl where they are replaced by plicae.

Distribution
This species occurs in the Bay of Biscay off France ar depths between 650 m and 1410 m.

from Norway to southern Morocco, also the Canary Islands and the Azores; Mediterranean sea. Gorringe, Josephine, Seine, Great Meteor, Hyères, Plato, Irving and Atlantis seamounts, moderately common in 250-1380 m. Antialtair seamount, extremely common in 900-1470 m. Western Atlantic, from Nova Scotia and New Jersey to North Carolina.