Banana Slug are Mollusks, which means they are soft-bodied with no visible skeleton. They also belong to the class Gastropoda, which can be recognized by having a muscular foot, a mantle with a cavity, a meaty hump on their back, and a radula or sand-paper-like grinding mouth parts. They are Pulmonates, which means they have a small lung inside their bodies which opens to the outside with a pneumostone.
