White Sea to Madeira, Azores to Mediterranean. Grazer in intertidal and infralittoral grounds. Original taxon: Jeffreysia globularis. « Obliquely orbicular, strongly umbillicated. » – Forbes & Hanley: A history of British Mollusca and their shells vol. IV, London 1853, p.268. « Adult specimens […] exhibit, under an ordinary magnifying power, coarse spiral striae. […] The fry are most abundant in Skye at the roots of sea-weeds. » – J. G. Jeffreys: “Gleanings in British Conchology”, The Annals and magazine of natural history ser. III vol. I, fasc. I, London 1858, p.45.