06 Patella shell. Underside of live Patella vulgata.

06 Patella shell. Underside of live Patella vulgata.

Main text for set is below image P2 02 Patella shell. Interior of Patella vulgata shell. Length 20.2mm. Specimen chosen for clarity. Many P. vulgata are not as clearly marked or so coloured. .

Head is contained within the nuchal cavity; it is not attached to the shell or to the mantle forming the cavity-roof so cannot form a scar. Also, it is located well anterior of most so-called “head scars”.