''Notocitellus'' is a genus of ground squirrels, containing two species from Mexico. These species are the tropical ground squirrel (''Notocitellus adocetus''), and the ring-tailed ground squirrel (''N. annulatus''). ''Notocitellus'' was formerly placed in the large ground squirrel genus ''Spermophilus'', as a subgenus or species group. Since DNA sequencing of the cytochrome b, cytochrome ''b'' gene has shown ''Spermophilus'' to be paraphyletic to the marmots, antelope squirrels, and prairie dogs, it is now separated, along with six other genera. The exact relations of this genus are unclear, though a relation to the antelope squirrels is possible.

References

Notocitellus, Rodent genera Taxa named by Arthur H. Howell {{ground-squirrel-stub