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 gene has shown Spermophilus to be paraphyletic to the marmots, antelope squirrels, and prairie dogs,[1] it is now separated, along with six other genera.[2] The exact relations of this genus are unclear, though a relation to the antelope squirrels is possible.[2]

Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Sciuridae
Tribe: Marmotini
Genus: Notocitellus
A. H. Howell, 1938

N. adocetus
N. annulatus

Notocitellus distribution map.png
Distribution of the Notocitellus ground squirrels


  1. ^ Herron, Matthew D.; Castoe, Todd A.; Parkinson, Christopher L. (2004). "Sciurid phylogeny and the paraphyly of Holarctic ground squirrels (Spermophilus)". Molecular Phylogenetics and Evolution. 31 (3): 1015–30. doi:10.1016/j.ympev.2003.09.015. PMID 15120398.
  2. ^ a b Helgen, Kristofer M.; Cole, F. Russel; Helgen, Lauren E. & Wilson, Don E (2009). "Generic Revision in the Holarctic Ground Squirrel Genus Spermophilus" (PDF). Journal of Mammalogy. 90 (2): 270–305. doi:10.1644/07-MAMM-A-309.1. Archived from the original (PDF) on 22 October 2011.