1. Lacuna vincta. Typically four spiral bands on final whorl, but often merge into fewer broader bands, as on largest specimen in image. Two rings of L. vincta spawn. (Rissoa parva top right). Sublittoral, -5m, Loch Carron, Scotland.
2. Lacuna vincta. Typically four spiral bands on final whorl, but often merge into fewer broader bands, as on largest specimen in image. Two rings of L. vincta spawn. (Rissoa parva top right). Sublittoral, -5m, Loch Carron, Scotland.

Lacuna vincta. Typically four spiral bands on final whorl, but often merge into fewer broader bands, as on largest specimen in image. Two rings of L. vincta spawn. (Rissoa parva top right). Sublittoral, -5m, Loch Carron, Scotland.