Body has a very depressed dome profile.
Mantle has linear, colourless, transparent, soft tubercles (1); image edited to make them more visible.
Length 4 mm. Menai Strait, Wales. September 2011.
Body has a very depressed dome profile.
Mantle has linear, colourless, transparent, soft tubercles (1); image edited to make them more visible.
Length 4 mm. Menai Strait, Wales. September 2011.