XL sized Columbian ground squirrel skull. 2" - 2.25" in length. Very nice #1 quality skull taken from an adult squirrel. Has turbinate nasal structures. Has been professionally BEETLE cleaned and whitened. This squirrel was quite active gathering winter forage as his incisors were being used to cut vegetation faster than they would grow. The incisors are short in length and worn close to the gum line. The incisors have a nice dark yellow (nearly orange) color.