👉 Cosmopsaltriini are a group of marine gastropod mollusks, commonly known as the "sea cucumbers," that belong to the superfamily Nematoda, which also includes other cephalopods such as the sea urchins and squid. These organisms have an elongated body shape with a single long, smooth snout, making them very similar to the squids they are related to. They are characterized by their highly developed exoskeleton, which is
