MAMMALS OF MINNESOTA. 165 
Sub-genus icripomys,Allen. Ears generally small,sometimes rudimentary; 
tail long, cylindrical, or narrow and flattened, or quite broad, with 
the hairs one-half to three-fourths the length of the body; skull very 
long and narrow; first upper premolar usually rather small, and the 
dentition not heavy.” 
It will be seen that there are but two species, S. franklini and 
S. tridecemlineatus, whose range brings them within our limits, 
although specimens of one of the varieties of S. richardsoni 
might possibly cross our northwestern boundary. Both the 
species above mentioned may be found in suitable localities 
throughout the state. The S. franklini is less fossorial, and 
being a more conspicuous animal, is soon destroyed in thickly 
settled regions, while the great fertility and more subterranean 
habits of the leopard gopher, enable it to hold its own in spite 
of the best endeavors of the farmer and the army of boys and 
dogs who pursue it in the vicinity of towns. Their curiosity 
being the-one failing which enables boys of exceptional pa- 
tience to snare them at the openings of the burrows into which 
they have been seen to plunge. 
Spermophilus tridecemlineatus MItTcHILL. 
PLATE X. 
Sciurus tridecemlineatus MircHiLL, Med. Repos., xxi, 1821; DESMAREST, 
Mamm. ii, 1822. 
Arctomys tridecemlineatus HARLAN, Fauna Amer., 1825; GODMAN, Am. 
Nat. Hist. ii, 1826. 
Spermophilus tridecemlineatus AUDUBON and BACHMAN, Quad. N. A., i, 1849; 
Hoy, Pat. Off. Rep. Agr., 1853; KennicorT,Wb.,, 1856; 
BAIRD, Mam. N. A., 1857; Tuomas, Trans. Ill] State Agr. 
Soc., 1860; ALLEN, Proc. Bost. Soc. Nat. Hist., 1870. 
Spermophilus tridecem. var. tridecemlineatus ALLEN, Proc. Bost. Soc. Nat. 
Hist., 1874; Monographs N. A. Rodentia, 1877. 
Arctomys hoodi SABINE, Trans. Linn. Soc., 1822; Franklin’s Journal, 1823; 
FISCHER, Synop. Mam. 1829; WAGNER, Schreber’s Siiu- 
gethiere. 
Arctomys (Spermophilus) hoodi RICHARDSON, Fauna Boreali-Amer., 1829. 
Spermophilus hoodi F. CUvV1iER, Suppl. Buffon. 1831; MAXIMILLIAN, Reise 
N. Amer., 1839; Archiv. f. Naturgesch., 1861. WAGNER, 
Suppl. Schreber’s Siuget., 1843; BRANDT, Bull. Physico- 
Math. Cl. Acad. St. Petersb., 1844; ScHINz. Syn. Mam., 
1845; GIEBEL, Siugethiere, 1855. 
A full-grown female measures as follows: Head and body, 
7.25; tail, 4.15; total length, 11.40; hind foot. 1.50; fore foot, 
0.85; longest fore claw, 0.30; nose to eye,0.80; nose to ear, 1.50; 
nose to occiput, 2.0; hight of ear, 0.30; longest hairs on the 
