35 Patella vulgata

35 Patella vulgata

Right: mantle removed and viscera expanded: radula in translucent sac (1), digestive gland (2), stomach (3), intestine (4), gonads (5). Left: intact mantle with black pigment (6), translucent mantle skirt (7), severed pedal retractor muscle(8).  Shell length 41.6 mm, Mersey Estuary, August 2017.