🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsРусский中文日本語EntityQ1480851· pop 18· linked from 2,755 articlesoperculumhard structure which closes the aperture of a gastropod when the animal retreats into the shellAvailable in 17 languagesEspañolFrançaisDeutsch中文РусскийPortuguêsItalianoBulgarianCatalanCzechFilipinoConnectionsGastropodaEntityJapanCountryCategoriesGastropod anatomyIncense materialMollusc productsOrganic gemstones