A species of predatory gastropods. Distinguished by the blackish brown shell with mauve-purple aperture. A low shore species of rocky shores, often abundant on undersides of boulders. Shells often covered with epifauna.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith