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New York, Massachusetts. Connecticut, Rhode Island, Maine, USA
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Chesapeake District (Atlantic Coast of North America, south of New York City)
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Texas, Louisiana, Mississippi, Alabama, USA
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Great Lakes
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California, USA
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Washington, Oregon, British Columbia
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Brazil
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France, Switzerland and Monaco
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NORTH EUROPE DISTRICT (Sweden, Finland, Poland, Norway, Iceland, Estonia, Latvia, Lithuania and northern Russia)
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Asia, Australia and New Zealand
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NORTHEASTERN LAKES DISTRICT (Lakes of northeastern United States and eastern Canada)
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NORTH SEA DISTRICT (British Isles, Belgium, Netherlands, Luxembourg, Denmark, Northern Germany)
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MID-MEDITERRANEAN DISTRICT (Italy and Greece)
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IBERIAN DISTRICT (Spain and Portugal)
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DONAU ALPEN DISTRICT (Austria, Belarus, Croatia, Czech Republic, Georgia, Southern Germany, Hungary, Slovakia, Slovenia, central Russia and Ukraine)
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Argentina and Chile (South American West Coast and East Coast South of Brazil)
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Venezuelan
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Florida, USA (Caribbean Islands and Florida)
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Colorado and Wyoming, USA
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