👉 Pygmaeomorpha is a group of marine invertebrates that includes cephalopods, which are characterized by their spherical shape and long, slender bodies. These invertebrates have been found on diverse oceanic shelves and seafloor habitats, including coral reefs, rocky shores, and deep-sea trenches. Their unique features include the presence of a siphuncle, which is a chamber-like structure that houses the central nervous system (CNS). Pygmae
