Geographic location
Antarctic
4
Atka
4
Lazarev
Lazarev Sea
4
Agulhas Basin
3
Astrid Ridge
3
Indian
3
Maud Rise
3
Norway
3
Filchner Trough
2
Southern Ocean
2
Antarctic Peninsula
1
Argentine
1
Argentine Islands
1
Bransfield Strait
1
Cape Fiske
1
Drake Passage
1
Gould Bay
1
Greenland
1
King George Island
1
Lyddan Island
1
Weddell
1
Weddell Sea
1