Order Rodentia - Family Sciuridae Author Robert S. Hoffmann Author Charles G. Anderson text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 419 465 book chapter http://doi.org/10.5281/zenodo.7353130 1-56098-217-9 7353130 Sciurotamias Miller, 1901 . Proc. Biol. Soc. Washington , 14:23 . TYPE SPECIES: Sciurus davidianus Milne-Edwards, 1867 . SYNONYMS: Rupestes Thomas, 1922 . COMMENTS: Includes Rupestes and Sciurotamias as subgenera; reviewed by Moore and Tate (1965) . S. davidianus has a penile duct and Cowper's glands, and its glans and baculum are similar to those of Ratufa ; therefore, Callahan and Davis (1982) removed this taxon from the Tamiasciurini ( Moore, 1959: 182 ) or Tamiini ( Gromov et al., 1965:124 ) and tentatively referred it to Ratufini .