Region
United States
7
Sri Lanka
4
America
3
Galapagos Islands
3
Mexico
3
North Atlantic Ocean
3
Oregon
3
Pacific Coast
3
Panama
3
Antarctica
2
Bahamas
2
Barro Colorado Island
2
California
2
Caribbean Sea
2
China
2
Greece
2
Hydra Island
2
India, South
2
Latin America
2
Madagascar
2
Mexico, Gulf of
2
Montana
2
Pacific Coast (U.S.)
2
Philippines
2
Ascension
1
Atlantic Coast (North America)
1
Barro Colorado Island (Panama)
1
British Columbia
1
Calvert Cliffs
1
Canary Islands
1
Clallam County
1
Cocos (Keeling) Islands
1
Czech Republic
1
Egypt
1
Elderberry Canyon
1
Europe
1
Florida
1
Galeta Point
1
Guiana
1
Idaho
1
Indian River
1
Jamaica
1
Lewis and Clark County
1
Lincoln County
1
Malaya
1
Malaysia
1
Maryland
1
Mediterranean Region
1
Monterey County
1
Moravia
1
more ...