10 mean10.621.54.711.34.224.811.012.79.9 max11.222.35.211.64.426.211.713.210.9 min10.020.84.310.94.023.510.512.49.7 +------+------+------+------+------+------+------+------+------_Zapus princeps pacificus_,North Fork Coffee Cr., 4500 ft., Calif.
8 mean10.421.54.710.93.924.811.112.510.0 max10.822.45.011.44.025.211.413.210.5 min10.020.74.510.73.824.010.512.09.6 +------+------+------+------+------+------+------+------+------Jackson Lake, 5900 ft., California.
7 mean10.421.54.511.14.024.911.012.610.0 max10.622.14.611.54.125.511.412.910.4 min10.120.74.310.53.823.510.012.29.6 +------+------+------+------+------+------+------+------+------Head of Lyle Canyon, 9700 ft., California.
7 mean10.320.84.710.63.824.010.512.39.5 max10.521.85.011.04.024.610.812.710.0 min10.020.04.510.23.523.010.011.89.0 +------+------+------+------+------+------+------+------+------_Zapus princeps princeps_, Florida, Colorado.
7 mean10.221.44.610.53.724.911.112.39.9 max10.522.34.711.33.825.411.412.510.3 min9.720.74.39.83.523.910.911.99.3 +------+------+------+------+------+------+------+------+------_Zapus princeps princeps_, Half Way, Colorado.
6 mean10.121.74.610.83.924.911.012.39.9 max10.322.04.811.14.025.811.312.710.2 min10.021.24.510.53.824.210.712.19.6 +------+------+------+------+------+------+------+------+------8 mi. N, 19-1/2 mi. E Savery, Wyoming.
11 mean10.221.24.510.93.924.510.812.29.7 max10.521.84.711.14.125.011.112.510.2 min10.020.84.210.63.723.710.512.09.3 +------+------+------+------+------+------+------+------+------21-1/2 mi. S, 24-1/2 mi. W Douglas, 7600 ft., Wyoming.
11 mean10.121.24.610.94.024.610.812.39.8 max10.421.94.911.24.125.011.212.810.1 min9.920.74.510.83.824.210.512.09.5 +------+------+------+------+------+------+------+------+------Medicine Wheel Ranch, 28 mi. E Lovell, 9000 ft., Wyoming.
20 mean10.321.54.711.24.024.711.012.610.0 max10.622.24.911.54.225.311.412.910.4 min10.020.74.410.83.824.110.612.29.8 +------+------+------+------+------+------+------+------+------_Zapus princeps saltator_,Stikine River at Glenora, British Columbia.
17 mean10.421.34.410.94.124.310.712.59.6 max10.722.24.511.44.525.011.413.010.0 min9.820.54.110.63.823.310.312.09.3 +------+------+------+------+------+------+------+------+------Hazelton, 959 ft., British Columbia.
15 mean10.421.64.511.04.024.610.912.59.8 max10.822.34.711.64.225.511.412.910.0 min9.920.74.210.73.823.710.511.79.4 +------+------+------+------+------+------+------+------+------_Zapus princeps utahensis_,near Robertson, 8700 ft., Wyoming.
15 mean10.722.05.011.24.125.411.113.29.9 max11.122.65.111.64.226.411.714.010.3 min10.321.04.710.83.924.610.812.49.6 +------+------+------+------+------+------+------+------+------3 mi. N and 11 mi. E Alpine, 5650 ft., Wyoming.
17 mean10.622.14.711.34.125.311.313.09.9 max11.023.04.911.74.326.211.813.510.5 min10.321.34.4 10.84.024.210.712.19.5 +------+------+------+------+------+------+------+------+------_Zapus princeps utahensis_,Salamander Lake and Lambs Canyon, 9000 ft., Utah.
9 mean10.922.04.811.24.125.211.113.110.0 max11.322.45.011.34.325.911.413.310.3 min10.721.54.511.03.924.610.712.69.7 +------+------+------+------+------+------+------+------+------_Zapus hudsonius acadicus_,vicinity of St. Andrews, New Brunswick.
4 mean9.619.84.110.23.523.010.110.89.5 max9.819.94.210.33.723.110.211.19.7 min9.219.73.910.03.322.89.910.49.2 +------+------+------+------+------+------+------+------+------Sebec Lake, Maine.
3 mean9.619.54.310.03.523.010.010.79.2 max9.819.84.510.13.623.310.111.39.4 min9.419.04.09.73.422.69.99.99.0 +------+------+------+------+------+------+------+------+------2 mi. S Center Ossipee, New Hampshire.
10 mean9.619.84.210.13.523.310.010.89.3 max10.020.54.610.43.624.010.311.09.9 min9.218.93.89.73.222.39.610.68.8 +------+------+------+------+------+------+------+------+------Berlin, New York.
6 mean9.519.54.310.13.522.99.810.89.2 max9.920.64.410.63.723.810.611.39.6 min9.218.84.29.53.421.89.310.48.6 +------+------+------+------+------+------+------+------+------Lake Kedgemakooge, Nova Scotia.
5 mean9.519.94.210.33.523.410.211.39.4 max9.720.14.310.43.523.510.411.49.5 min9.319.74.010.33.423.39.911.09.3 +------+------+------+------+------+------+------+------+------_Zapus hudsonius alascensis_, Lake Clark, Alaska.
2 mean9.519.34.310.03.622.89.910.79.2 max9.619.64.410.03.623.09.910.79.2 min9.419.14.29.93.522.69.910.79.2 +------+------+------+------+------+------+------+------+------Frosty Peak, Yakutat Bay, Alaska.
3 mean9.819.74.210.33.623.510.110.89.5 max10.020.04.510.63.724.210.411.19.8 min9.619.04.09.83.522.59.610.29.2 +------+------+------+------+------+------+------+------+------_Zapus hudsonius alascensis_,7 mi. SSE Haines, 10 ft., Alaska.
14 mean9.920.04.210.43.623.710.211.09.4 max10.120.54.410.83.724.610.711.49.8 min9.819.54.010.23.423.09.810.49.0 +------+------+------+------+------+------+------+------+------SW end Dezadeash Lake, Yukon.
2 mean10.019.84.510.53.623.510.211.39.6 max10.120.14.510.53.623.810.411.39.7 min9.819.54.410.53.523.210.011.29.5 +------+------+------+------+------+------+------+------+------_Zapus hudsonius america.n.u.s_, Boyne Falls, Michigan.
8 mean9.518.74.19.73.322.09.511.09.1 max9.819.44.310.03.423.210.011.49.3 min9.318.33.89.43.021.59.010.39.0 +------+------+------+------+------+------+------+------+------Ann Arbor, Michigan.
3 mean9.518.64.29.93.322.09.510.99.0 max9.618.84.410.03.322.49.811.09.1 min9.418.53.89.83.221.99.310.88.9 +------+------+------+------+------+------+------+------+------Montauk Point, L. I., New York.
2 mean9.418.84.39.23.522.29.710.68.9 max9.619.14.49.23.522.59.810.78.9 min9.218.44.29.23.421.99.510.58.9 +------+------+------+------+------+------+------+------+------Mays Landing, New Jersey.
2 mean9.418.84.49.83.422.19.610.98.5 max9.518.84.49.83.522.29.711.08.7 min9.318.74.49.83.222.09.510.88.2 +------+------+------+------+------+------+------+------+------Laurel, Maryland.
3 mean9.118.64.39.63.322.09.510.68.7 max9.318.94.59.73.322.09.710.88.9 min8.918.24.19.53.321.99.210.48.6 +------+------+------+------+------+------+------+------+------Hampton, Virginia.
3 mean9.018.84.19.73.321.99.410.69.0 max9.318.94.19.83.322.09.611.19.2 min8.618.54.09.63.221.89.210.08.9 +------+------+------+------+------+------+------+------+------_Zapus hudsonius america.n.u.s_, Raleigh, North Carolina.
3 mean9.218.84.09.93.422.49.610.98.9 max9.619.74.210.43.523.09.910.99.4 min8.817.93.99.43.221.89.410.88.5 +------+------+------+------+------+------+------+------+------_Zapus hudsonius campestris_,3 mi. NW Sundance, 5900 ft., Wyo.
19 mean9.719.94.310.43.623.210.011.19.5 max10.020.84.510.93.824.210.511.810.0 min9.419.23.810.13.422.49.510.79.2 +------+------+------+------+------+------+------+------+------Palmer Gulch, Black Hills, South Dakota.
11 mean9.820.24.310.53.723.410.111.49.6 max10.221.44.511.13.924.910.912.010.2 min9.519.04.210.13.521.99.510.79.0 +------+------+------+------+------+------+------+------+------_Zapus hudsonius canadensis_, St. Methode, Quebec.
4 mean9.619.24.310.13.622.69.810.99.1 max9.919.74.510.23.723.510.111.29.4 min9.118.53.99.93.321.79.510.78.7 +------+------+------+------+------+------+------+------+------Pancake Bay, Algoma District, Ontario.
11 mean9.618.84.110.03.522.29.610.49.2 max10.019.44.410.33.622.89.710.69.7 min9.218.33.89.63.321.89.29.88.6 +------+------+------+------+------+------+------+------+------Franz, Ontario.
5 mean9.819.44.210.33.522.69.810.79.0 max10.019.84.310.53.623.210.211.19.3 min9.618.94.110.23.422.19.610.48.8 +------+------+------+------+------+------+------+------+------_Zapus hudsonius hudsonius_, Fort Severn, Ontario.
4 mean9.919.34.29.93.522.79.610.99.2 max10.119.74.310.13.623.39.811.09.3 min9.819.04.09.73.422.09.310.79.0 +------+------+------+------+------+------+------+------+------Oxford House, Manitoba.
6 mean9.619.14.49.93.522.39.710.49.2 max9.919.84.610.13.723.110.010.89.6 min9.318.74.29.63.321.79.59.88.8 +------+------+------+------+------+------+------+------+------_Zapus hudsonius hudsonius_, Emma Lake, Saskatchewan.
2 mean9.819.44.39.93.622.79.810.99.0 max9.819.54.39.93.622.99.910.99.1 min9.819.34.29.93.522.49.610.98.9 +------+------+------+------+------+------+------+------+------Lac la Nonne, Alberta.
4 mean9.819.14.210.03.422.49.710.59.1 max9.819.44.210.03.522.69.910.59.2 min9.718.84.19.93.322.29.610.58.9 +------+------+------+------+------+------+------+------+------1 mi. NW Junct. Irons Cr. and Laird River,British Columbia.
3 mean9.619.04.39.93.522.29.710.69.1 max9.619.34.310.13.522.69.810.99.3 min9.518.74.39.73.421.79.510.38.9 +------+------+------+------+------+------+------+------+------_Zapus hudsonius intermedius_, Blackner, North Dakota.
2 mean10.119.64.310.03.622.79.911.19.4 max10.120.04.410.43.723.29.911.49.7 min10.019.14.19.83.422.29.810.89.0 +------+------+------+------+------+------+------+------+------Cannon Ball, North Dakota.
2 mean9.819.14.410.13.622.09.511.09.1 max9.919.14.410.23.722.49.811.39.2 min9.619.04.39.93.421.89.210.79.0 +------+------+------+------+------+------+------+------+------Elk River, Minnesota.
8 mean9.519.24.29.93.422.59.610.69.2 max9.719.64.310.03.623.09.911.09.5 min9.218.94.09.93.322.19.410.29.0 +------+------+------+------+------+------+------+------+------E Okeboji Lake, Iowa.
3 mean9.619.34.29.93.422.29.310.29.4 max9.819.34.210.03.422.29.310.29.7 min9.419.34.29.83.422.29.210.29.0 +------+------+------+------+------+------+------+------+------Turkey Run State Park, Indiana.
2 mean9.518.94.29.63.522.39.810.49.0 max9.618.94.49.63.622.49.810.89.0 min9.418.94.09.63.322.29.810.09.0 +------+------+------+------+------+------+------+------+------_Zapus hudsonius intermedius_,Jordan Cr., 3 mi. NE Fairmont, Ill.
5 mean9.619.44.110.13.622.610.010.79.2 max9.919.84.210.33.823.410.511.69.6 min9.318.94.010.03.421.99.510.38.9 +------+------+------+------+------+------+------+------+------Rib Hill, Wisconsin.
5 mean9.619.04.310.13.422.69.710.89.0 max10.019.84.410.53.623.710.211.29.3 min9.418.44.19.73.221.99.410.38.7 +------+------+------+------+------+------+------+------+------Lake St. Germain, Wisconsin.
5 mean9.718.94.110.13.522.59.610.59.0 max9.919.54.310.23.623.210.010.89.3 min9.518.43.99.83.321.89.010.28.5 +------+------+------+------+------+------+------+------+------_Zapus hudsonius ladas_, Northwest River, Labrador.
6 mean9.519.04.210.23.622.49.710.99.0 max9.620.04.410.33.623.210.211.09.4 min9.318.44.010.03.521.59.410.68.8 +------+------+------+------+------+------+------+------+------Moisie Bay, Labrador.
4 mean9.819.14.310.03.422.89.611.09.1 max9.819.74.410.03.523.510.111.39.8 min9.718.64.19.93.322.19.310.88.9 +------+------+------+------+------+------+------+------+------_Zapus hudsonius pallidus_, Mohawk Park, Oklahoma.
2 mean9.718.44.39.93.721.59.311.08.7 max10.118.84.39.93.721.89.411.08.7 min9.318.04.39.83.721.19.211.08.6 +------+------+------+------+------+------+------+------+------vicinity of Lawrence, Kansas.
10 mean9.218.84.49.83.421.69.710.99.0 max9.519.44.810.23.622.410.111.69.4 min8.918.14.09.33.321.09.010.38.8 +------+------+------+------+------+------+------+------+------2 mi. S Schuyler, Nebraska.
19.218.54.49.53.321.59.610.49.1 +------+------+------+------+------+------+------+------+------_Zapus hudsonius pallidus_,Valentine National Wildlife Refuge, Nebraska.
110.019.64.510.53.522.910.011.69.3 +------+------+------+------+------+------+------+------+------_Zapus hudsonius preblei_, Loveland, Colorado.
2 mean9.618.54.110.03.622.39.610.49.1 max9.619.04.210.03.622.49.810.69.1 min9.518.03.910.03.622.29.410.29.1 +------+------+------+------+------+------+------+------+------Spring Hill, 12 mi. N Laramie Peak, 6300 ft., Wyoming.
19.819.24.110.23.622.810.210.79.3 +------+------+------+------+------+------+------+------+------_Zapus hudsonius tenellus_,Hazelton, 959 ft., British Columbia.
2 mean9.619.44.410.13.522.99.610.99.2 max9.619.54.410.23.523.09.610.99.2 min9.619.34.310.03.422.79.610.89.2 +------+------+------+------+------+------+------+------+------Cottonwood P. O., British Columbia.
2 mean9.519.54.410.13.522.89.710.89.2 max9.619.64.510.23.522.89.810.99.3 min9.319.44.210.03.422.79.610.79.1 +------+------+------+------+------+------+------+------+------S end Swan Lake, British Columbia.
2 mean9.419.74.110.03.622.910.110.99.5 max9.419.74.210.23.623.210.210.99.6 min9.319.64.09.83.522.610.010.89.4 +------+------+------+------+------+------+------+------+------Indianpoint Lake, 15 mi. NE Barkerville, British Columbia.
4 mean9.618.94.19.93.421.99.510.89.0 max9.619.64.210.03.623.09.811.39.4 min9.418.34.09.83.321.39.110.28.8 --------+------+------+------+------+------+------+------+------+------
LITERATURE CITED
ALLEN, J. A.
1894. Cranial variation in _Neotoma micropus_ due to growth and individual differentiation. Bull. Amer. Mus. Nat. Hist., 6:233-246, 1 pl., August 3, 1894.
ANDERSON, R. M.
1932. Five new mammals from British Columbia. Ann. Rept. 1931, Nat.
Mus. Canada: 99-119, 1 pl., November 24, 1932.
1942. Six additions to the list of Quebec mammals with descriptions of four new forms. Ann. Rept. Prov. Soc. Nat. Hist. for 1941:31-42, July 14, 1942.
AXELROD, D. I.
1948. Climate and evolution in western North America during Middle Pliocene time. Evol., 2:127-144, July 2, 1948.
BAILEY, B.
1929. Mammals of Sherburne County, Minnesota. Jour. Mamm., 10:153-164, May 9, 1929.
BAILEY, J. W.
1946. The mammals of Virginia. Williams Printing Company, Richmond, Virginia, xii + 416 pp., 96 figs. in text, December, 1946.
BAILEY, V.
1923. Mammals of the District of Columbia. Proc. Biol. Soc. Washington, 36:103-138, May 1, 1923.
1927. A biological survey of North Dakota. N. Amer. Fauna, 49:vi + 226 pp., 1 map, 21 pls., 8 figs. in text, January 8, 1927.
1932. Mammals of New Mexico. N. Amer. Fauna, 53:1-412, 22 pls., 58 figs. in text, March 1, 1932.
1936. The mammals and life zones of Oregon. N. Amer. Fauna, 55:1-416, 1 map, 52 pls., 102 figs. in text, August 29, 1936.