👉 Cryptoteuthis, also known as cryptoteuthid, is a family of small to medium-sized freshwater snails that are part of the order Neuroptera and belong to the subfamily Cephalacinae. These snails have an elongated body shape with a soft, spiny shell, and they primarily feed on organic matter from aquatic plants. Cryptoteuthis are found in various habitats such as rivers, lakes, and wetlands around the world.