4-7mm diameter. This small ramshorn snail has a strong, white, chalky shell with spiral, as well as radial, striations.The round mouth bends away from the main whorls at an obtuse angle.

• 4-7mm
• white, strong shell
• spiral striations
• mouth at an obtuse angle to main shell

Found in both rivers and larger reservoirs, sometimes in smaller waterways.

All year.

Relatively common and widespread

Uncommon or under-recorded.