01 Chthamalus montagui

01 Chthamalus montagui

Apertures kite-shape. Tergum (1) fixed to scutum (2). Tergoscutal flaps with brown micropyle (3) and rostral end (4), white (5) or pale blue (6) rim, and grey-blue shades (7) between micropyle and rostrum. On a live Patella.. Portland Bill, Dorset. April 2012.