07 Rissoa membranacea.

07 Rissoa membranacea.

The flimsy, pale horn-coloured, semi-transparent operculum (1) shows the end of the whitish interior of the columellar muscle that forms the opercular disc. Shell height 9.2 mm. Orkney, Scotland. May 2017. Leg. S. Taylor.

Key Identification Features & Similar Species under image 02 Rissoa membranacea

marinvert.senckenberg.science/image-browse/