👉 Delicatula is a type of mollusk that is commonly found in freshwater environments, including rivers, lakes, and marshes. It is known for its distinctive shell, which is often made up of small, irregularly shaped pieces called "delicate" or "petechia," which are arranged in rows around the body to form a smooth, rounded surface. Delicatula is native to Asia, North America, and Australia and has been found throughout most parts of these regions.