LYMNZIDZ OF NORTH AMERICA. 413 
mighelsi, angulata, and the other races of this species. It should be 
found abundantly in the waters of northern Michigan, northern Maine 
and southeastern British America. 
RECORDS. 
UNITED STATES. 
Marine: Mud Lake (second Eagle Lake) on Fish River; Aroostook River ; 
thoroughfare between Portage and Eagle lakes; Square Lake Inlet; Fish River, 
Fort Kent; Aroostook Co. (Nylander); Aroostook Co. (Nylander); Lakes of 
Maine (Say). 
SRE 
RES 
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Micuican: Lake shore, Mackinac Island, Mackinac Co.; Sault St. Marie, 
Chippewa Co.; Tonkin, Conglomerate and Siskowit bays, Isle Royale (Walker). 
New York: North end Seneca Lake, Ontario Co. (Baker) ; Saratoga Lake, 
Saratoga Co. (Say). 
BritisH AMERICA. 
Ontario: Lake Superior (Ferriss; Newberry); Kettle Falls, Rainy Lake, 
Rainy River District; Nepigon River, Thunder Bay District; Rideau River, Otta- 
wa Dist. (Latchford) ; Lake Namakin, Thunder Bay Dist. (Say); Lake of the 
Woods, Rainy River Dist. (Whiteaves). 
GEOLOGICAL DisTRIBUTION: Unknown. 
