4 2 



Besides the addtions above indicated to the genera Sci- 

 iirus, Tamias, and Spermophilus, each of these genera is con- 

 sidered as separable into several subgenera, most of which, 

 however, were proposed prior to 1884. Thus Trouessart, 1 

 in 1880, proposed to divide the North American species of 

 Sciuriis into (1) Neoscinrus (type, S. carolinensis), (2) Para- 

 sciurus (type, 5. niger), and (3) Tamiasciurus (type. 5. 

 hiidsonius). Tamias was divided by the same author into 

 (1) Tamias (type, T. striatns), and (2) Eutamias (type, T. 

 asiaticus), to which Dr. Merriam 2 has added Amnios permo- 

 p hikes (type, T. lucunts), and has transferred this group to 

 the genus Spermophihis . To the four previously recognized 

 subgenera of Spermophihis Dr. Merriam has added 2 also 

 Xerospermophiliis (type, 5. mohavensis). 



In respect to the other genera of the Sciuridae, additions 

 have been made also to both Arctomys and Cynomys, with 

 radical changes in the nomenclature of some of the species 

 of the latter. 



There have likewise been numerous additions among the 

 Bats and Shrews, and also among the Carnivores, particu- 

 larly in the case of the Skunks of the genus Spilogale. 

 This group stood in 1884 as a subgenus of Mephitis, with I 

 species ; it now ranks as a genus, 3 with 8 species and 2 

 additional subspecies. 



Spermophilus canes cens Merriam. 



Spermopkilns sonoriensis Ward, Am. Nat., Feb., 1891, p 158. Hermosillo, 

 Sonora, Mexico. 

 Spermophihis tereticandus Baird. 

 Spermophilus mohavensis Merriam. 

 Spermophihis neglectus Merriam. 

 Spermophilus mexicanus (Licht. ). 

 Spermophilus trldecemllneatus (Milcheil). 

 Spermophilus trldecemllneatus pallidus Allen. 

 Spermophilus frankllnl (Sabine ). 

 Spermophilus annulatus (Aud. & Bach.). 



iBull. Soc. d'£tudes Scientif. d' Angers, 1888, pp. 76-81 and 86. 



2 Proc. Biol. Soc. Wash., VII., p. 27, April, 1S92. 



^Cf. Merriam, N. Am. Fauna, No. 4, pp. 1-15, Oct., 1890. 



