Attributes / relations provided by
♦ 1Conepatus leuconotus (Carnivora: Mephitidae), JERRY W. DRAGOO AND STEVEN R. SHEFFIELD, MAMMALIAN SPECIES 827:1–8 (2009)
♦ 2Geomys bursarius (Rodentia: Geomyidae), MATTHEW B. CONNIOR, MAMMALIAN SPECIES 43(879):104–117 (2011)
♦ 3Microtus canicaudus, B. J. Verts and Leslie N. Carraway, MAMMALIAN SPECIES No. 267, pp. 1-4 (1987)
♦ 4Microtus pinetorum, Michael J. Smolen, Mammalian Species No. 147, pp. 1-7 (1981)
♦ 5Microtus townsendii, John E. Cornely and B. J. Verts, MAMMALIAN SPECIES No. 325, pp. 1-9 (1988)
♦ 6Mustela frenata, Steven R. Sheffield and Howard H. Thomas, MAMMALIAN SPECIES No. 570, pp. 1-9 (1997)
♦ 7Sciurus niger, John L. Koprowski, MAMMALIAN SPECIES No. 479, pp. 1-9 (1994)
♦ 8Spermophilus elegans, David A. Zegers, Mammalian Species No. 214, pp. 1-7 (1984)