Live specimen with mantle extending through slit as a siphon. White shell stained brownish. Early growth near the centre of the shell has minute white, glistening dots arranged in rows along the ridges; they are the ends of caeca containing mantle epithelium.
L. 5.8 mm, W. 4.6 mm, H. 3.2 mm, Menai Strait, Wales, March 2015.
Full SPECIES DESCRIPTION at flic.kr/p/2odgEy1
Sets of OTHER SPECIES at:
/