When in water, shells are buff or chestnut and may indistinctly show the internal dark body. Snouts are transversely furrowed, distally pale and bilobed. Heights 4 mm & 3.5 mm. November 2010. Tidal River Dee, Flintshire, Wales.
When in water, shells are buff or chestnut and may indistinctly show the internal dark body. Snouts are transversely furrowed, distally pale and bilobed. Heights 4 mm & 3.5 mm. November 2010. Tidal River Dee, Flintshire, Wales.