violet sea-snail and glycymeris nummaria on the sandy coast of the mediterranean sea

art jewellery blue bead purple gemstone pattern circle sand flower necklace invertebrate petal leaf rock crochet organ toy violet sea-snail common snail large storm janthina epitoniidae glycymeris nummaria glycymerididae sandy coast mediterranean sea sand seashell saltwater clam marine bivalve mollusc violet snail common large purple storm janthina epitoniidae glycymeris cockleshell nummaria glycymerididae sandy coast mediterranean sea shellfish shell aquarium aquatic beach conch crustacean exotic fishstar invertebrate life living mollusk natural nature nautilus ocean scallop seashore shore species spiral travel tropical vacation water