👉 Vitrollula is a type of vertebrate that includes the fish, turtles, and certain types of crustaceans, such as crabs and lobsters. It is characterized by having two pairs of arms or legs, which are attached to the body through flexible cartilage called the calcaneum, allowing for movement in both directions. This structure allows for a wide range of movements, including swimming and diving, as well as climbing and turning over surfaces.
