04 Phorcus lineatus

04 Phorcus lineatus

Umbilicus sealed over leaving a dip (1) or “scar” in the broad white columella. Strong protuberance (2) or “tooth” below midpoint of columella. Transparent horn-coloured operculum; pale opercular lobe and some dark body-markings visible through it.
Shell height 16 mm, breadth 19 mm. April 2012. Weymouth, Dorset.