👉 Diplogale is a type of marine gastropod mollusk, commonly known as sea slugs or octopuses, that belong to the order Octopoda in the phylum Animalia. They are characterized by their long and slender bodies with eight arms (legs) that can be fused together at the base to form a shell. The shells are often made of bivalve-like structures and are used for digging burrows or hiding from predators.