XX-Large sized Idaho river otter skull. 4.5" - 4.75" in length. BEETLE cleaned, degreased, and whitened. Turbinate nasal structures are intact and undamaged. Both pterygoid processes are attached. All four canines and some of the premolars and molars have worn tips from biting on freshwater mussel shells, a major part of the otter's diet. Is missing one lower right P2 premolar. Good quality skull that is bright white!