The Eastern Grey Squirrel is a medium sized tree squirrel with no sexual dimorphism in size or colouration.  The dorsal surfaces ranges from grizzled dare to pale grey and may have cinnamon tones.  The ears are pale grey to white and the tail is white to pale grey.  Underpart are grey to buff.  Melanism is common in the northern portions of the range and albinism is rare in all areas.  The total length of these squirrels ranges from 35 to 50 cm, tail length ranges between 15 and 25 cm and ear length ranges from 2.5 to 3.8 cm.  Adults have a total of 22 teeth.