1: exposed juvenile spire and smooth white shell.
2: well developed papillae on mantle of juvenile.
3: inhalent siphon contracted.
Shell height 9.2 mm. Anglesey, Wales, September 2015. Leg. J. Light.
1: exposed juvenile spire and smooth white shell.
2: well developed papillae on mantle of juvenile.
3: inhalent siphon contracted.
Shell height 9.2 mm. Anglesey, Wales, September 2015. Leg. J. Light.