Region
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Kaffraria
3
London
3
Maine
3
Mendocino County
3
Michigan, Lake
3
Mississippi River Valley
3
New York
3
North America
3
Northwest Passage
3
Oceania
3
Patagonia (Argentina and Chile)
3
Pennsylvania
3
Philadelphia
3
Portugal
3
Québec (Province)
3
Saint Lawrence River Estuary
3
South Pacific Ocean
3
Au Sable River Region (Mich.)
2
Bahamas
2
Biograd na Moru
2
Biograd na Moru (Croatia)
2
Black Sea
2
Boston
2
Canada, Northern
2
Chila
2
Chiloé
2
Chiloé (Chile)
2
Cleveland
2
Gibraltar
2
Great Lakes Region (North America)
2
Hatteras, Cape
2
Hatteras, Cape (N.C.)
2
Huron, Lake (Mich. and Ont.)
2
Huron, Lake, Region (Mich. and Ont.)
2
Iosco County (Mich.)
2
Islay
2
Isle of Wight
2
London (England)
2
Marblehead (Mass.)
2
Marshall Islands
2
Mediterranean Region
2
Mediterranean Sea
2
Medocino County
2
Mendocino County (Calif.)
2
Mexico
2
Missouri River
2
Monitor National Marine Sanctuary
2
Netherlands
2
New England
2
New Hampshire
2
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