1. Lamellaria perspicua. 20 mm long (excluding projection of foot). Mantle curved into respiratory siphon. Dome is rarely depressed lower than in this picture, while L. latens always has a lower profile than this. LWS Menai Strait, Anglesey, Feb. 2011.
2. Lamellaria perspicua. 20 mm long (excluding projection of foot). Mantle curved into respiratory siphon. Dome is rarely depressed lower than in this picture, while L. latens always has a lower profile than this. LWS Menai Strait, Anglesey, Feb. 2011.

Lamellaria perspicua. 20 mm long (excluding projection of foot). Mantle curved into respiratory siphon. Dome is rarely depressed lower than in this picture, while L. latens always has a lower profile than this. LWS Menai Strait, Anglesey, Feb. 2011.