03 Velutina velutina. Shell height 10 mm. ELWS. Gairloch, North-west Scotland. May 2019. Leg. D. McKay & S. Taylor.

03 Velutina velutina. Shell height 10 mm. ELWS. Gairloch, North-west Scotland.  May 2019. Leg. D. McKay &  S. Taylor.

Live shell has a substantial light brown periostracum which is raised into many slightly waved, spiral ridges.
The periostracum reduces translucency of live specimens so the viscera are only faintly discernible (See also 04 Velutina velutina. Shell height 10 mm. ELWS. Gairloch, North-west Scotland. May 2019. Leg. D. McKay & S. Taylor. ).
The white, apical protoconch lacks a periostracum.