14 Patella vulgata

14 Patella vulgata

Fine, dark lines in the grooves between the pale ribs have merged into radiating broad bands, most clearly seen on the interior.  Straight posterior (1) resembles the description of P. ulyssiponensis by Graham (1988), L. 25 mm. H/L 40%. Apex 40% of L. from anterior. Great Orme, Wales, July 2011.