LITTORINIDAE (Periwinkles, Conniwinks and Clusterwinks)

Seashells

Bembicium nanum (Striped-Mouth Conniwink)

Littorinid molluscs colonise the upper limits of the littoral zone. They can survive very long time out of the water in a very wide range of temperatures and salinities.

Most littorinid molluscs have thick walled, turban-shaped shells, with a fairly simple operculum.

The Striped-mouth Conniwink’s shell is wider than high and is cone-shaped, with a flattened base.

Photo: Robert Whyte

Bembicium nanum (Striped-Mouth Conniwink)

Shell colour is grey or white with oblique brown and white bands, dominant on last whorl.

The interior is shiny, with dark brown stripes on the outer edge.

Photo: Robert Whyte