17 Assiminea grayana

17 Assiminea grayana

Right: Tidal channel through raised area of salting with terrestrial flora and fauna. Thousands of Assiminea grayana on tidal mud in channel; salinity sufficient to kill land molluscs that fall in, but no Peringia ulvae.
Left: Close up of wet mud in the channel; A. grayana mainly out of water.
Channel is on the Dee Estuary salting shown on image 16.