When in water, the grey body is more swollen, and both shell and body are more translucent, lighter and brighter in colour, and less reflective, than when in air.
L. bidentata always has white flesh.
6.2 mm high. Same specimen in air (left) and in water (right). Salting on tidal River Dee, Flintshire, Wales. December 2018.
12 Leucophytia bidentata COMPARISON Myosotella myosotis
