Amaea bowerbankii
Amaea bowerbankii is an extinct species of predatory sea snails, marine prosobranch gastropod mollusks in the family Epitoniidae.
Description
An elongated, turreted, moderately thick shell featuring nine to ten rounded, ventricose whorls. The shell is marked by 18 to 20 somewhat sharp, slightly oblique longitudinal ribs, with both the ribs and the intervening furrows finely transversely striated. The body whorl is distinctly carinated.On the lower whorls, the ribs may become divided and more irregular compared to the more uniform ribs on the upper whorls.