02 Nucella lapillus

02 Nucella lapillus

Squat, extremely exposed shore form with short spire height (1) 24% of shell height. Large aperture 76% of shell height. Fourteen well developed flattened, spiral ridges on body-whorl. Shell height 25 mm, breadth 17.4 mm. West coast of Hoy, Orkney (Atlantic fetch over 3000km). July 1973.