 Adults range from in total length, including the tail, and weigh between .This represents an example of insular dwarfism, and the animals are, on average, about 18% shorter and 45% lighter than the subspecies of common raccoon found on the local mainland, "P. lotor shufeldti".Cozumel raccoons also exhibit sexual dimorphism, with the males being around 20% heavier than the females.