👉 Nectiopods are a group of marine gastropod mollusks that belong to the family Echinidae and are known for their highly adapted cephalic structures, which allow them to withstand high pressures and temperatures found in bodies of water. These mollusk species have a wide range of sizes and shapes, with some being extremely large (up to 12 inches long) while others can be as small as just 0.5 inches. Their unique adaptations include the ability