_Specimens examined._--Total, 230, distributed as follows:
ALASKA: Fairbanks, 1 (USNM); _1 mi. SW Fairbanks, 440 ft._, 1.
ALBERTA: Conibear Lake, Wood Buffalo Park, 1 (NMC); Assineau River, 1920 ft., 10 mi. E and 1 mi. N Kinuso, 1; Mountain Rapid, Athabasca River, 1 (USBS); _Brule Rapid, Athabasca River_, 1 (USBS); _25 mi. above Pelican Rapid, Athabasca River_, 1 (USBS); Lac la Nonne, 7 (NMC); _Swift Current, Athabasca River_, 1 (USBS); _junction Lac la Biche River and Athabasca River_, 1 (USBS); 30 mi. above Athabasca Landing, Athabasca River, 1 (USBS).
BRITISH COLUMBIA: 1 mi. NW junction Irons Creek and Laird River, 3; Hot Springs, 3 mi. WNW junction Trout River and Laird River, 1; _1/4 mi. S junction Trout River and Laird River_, 1.
MANITOBA: York Factory, 2 (USBS); Shamatawa River, 1 (USBS); Oxford House, 15 (USBS); _Robinson Portage_, 4 (USBS); _Echamamish_, 1 (USBS); Norway House, 1 (USBS); _Swan River_, 1 (NMC); Bird, 1 (NMC); _Aimie Lake_, 2 (NMC); Albert's Lake, Flin Flon, 2 (NMC); Portage La Prairie Prov., Delta, 1 (UM).
MACKENZIE DISTRICT: Fort Resolution, 3 (USBS); Fort Smith, 3 (USBS).
MICHIGAN: _Chippewa Co._: Marquette Nat'l Forest, 4; _no exact locality_, 2. _Gogebic Co._: Mud Lake, 1/4 mi. SE Thousand Island Lake, 2. _Keweenaw Co._: Lake Manganese, 1 mi. SSE Copper Harbor, 5 (UM); _2-1/5 mi. SE Copper Harbor_, 8 (UM); _5 mi. E Eagle Harbor_, 6 (UM); _E end Lake Upson_, 3 (UM); _Bete Grise_, 5 (UM). _Marquette County_: Michigamme, 3 (2 USBS). _Menominee Co._: _8 mi. N Hermansville_, 6 (UM); _6 mi. NW Banat_, 8 (UM); _5 mi. SW Banat_, 8 (UM); _8 mi. SW Banat_, 2 (UM); _7 mi. E Stephenson_, 3 (UM); _8 mi. WSW Stephenson_, 2 (UM); _10 mi. W Stephenson_, 2 (UM); _13 mi. WSW Stephenson_, 2 (UM); 5 mi. N Menominee, 2 (UM).
MINNESOTA: _Lake Co._: Splitrock River, 2 (UM); _St. Louis County_: Tower, 27 (USBS).
ONTARIO: Fort Severn, Kenora District, 6 (ROM); Minaki, 7 (MVZ); _30 mi. NE Port Arthur_, 6 (UM); Silver Islet, Thunder Bay District, 4 (NMC); _20 mi. SW Fort Williams_, 3 (UM); _20 mi. SE Fort Williams_, 1 (UM).
WISCONSIN: _Bayfield County_: _Herbster_, 4 (USBS); Brinks Camp, Washburn, 1 (AMNH); _Basswood Lake, 10 mi. SE Iron River_, 1 (USBS). _Douglas County_: Solon Springs, 9 (USBS). _Forest County_: Crandon, 1 (USBS). _Iron County_: Mercer, 2 (USBS). _Oneida County_: _Crescent Lake_, 2 (USBS). _Vilas County_: _Mamie Lake_, 2 (USBS); _Lake St. Germain_, 9 (USBS).