Thin brownish white periostracum dims the colour of the spiral bands (1) and extends beyond outer lip of aperture (2). Band colour stronger within aperture where no periostracum (3).
Shell breadth 3.6 mm, similar to height of 3.5 mm. Menai Strait. August 2013.

Full SPECIES DESCRIPTION with links to images at:

Sets of OTHER SPECIES at: /.