| Noun | 1. | genus Citellus - typical ground squirrels mammal genus - a genus of mammals family Sciuridae, Sciuridae - a mammal family of true squirrels including: ground squirrels; marmots; chipmunks; flying squirrels; spermophiles spermophile, ground squirrel, gopher - any of various terrestrial burrowing rodents of Old and New Worlds; often destroy crops |