Acrilla deslongchampsi
Acrilla deslongchampsi is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.
Description
The length of the shell is up to 12 mm, its diameter 5 mm.The elongated shell is turbinate, turriculate and acuminate at its top. It contains nine convex whorls, decorated with longitudinal, equal, projecting ribs, strongly curved towards the suture, having, as a whole, the general shape of an S. The interstices of the ribs are smooth. The suture is deep. The body whorl is similar to the others, carrying at its base a disc whose straight, projecting radiations correspond to the transverse ribs. The simple aperture is round.