Rodent of the family Sciuridae. Squirrels are found worldwide except for Australia, Madagascar, and polar regions. Some are tree dwellers; these generally have bushy tails, and some, with membranes between their legs, are called flying squirrels. Others are terrestrial, generally burrowing forms called ground squirrels; these include chipmunks, gophers, marmots, and prairie dogs.
The mon, the central red disc, is called Hi-no-maru or sun-disc. The disc is set slightly towards the hoist. White symbolizes honesty and purity. Effective date: 5 August 1854.