👉 Trigonostominae are a group of marine gastropod mollusks that belong to the family Cnidaria and are known for their unique and intricate anatomy, which includes spiral shells, eight pairs of oppositely positioned eyes, and a highly developed cephalothorax. These mollusks are characterized by their long, slender bodies, with a wide range of shapes and sizes, including those with spiral shells that can be as large as 10 meters in diameter!
