Edge-on view of thin horn coloured operculum (1) resting on thick whitish opercular disc (2) that extends into flaps when viewed from above. The opercular disc/flap is dark only proximally (3) where it merges with the dark exterior of the columellar muscle. Foot (4) is translucent white with opaque white spots. Shell height 9.2mm. Orkney, Scotland. May 2017. Leg. S. Taylor.