Geographic location
Antarctic
5
Arctic
5
Greenland
5
Indian
5
Weddell
5
Weddell Sea
The Antarctic
4
Ross Sea
3
Annenkova
1
Bertrand
1
Bingham
1
British Columbia
1
Canada
1
Christiania
1
Christoffersen
1
East Antarctica
1
Lamarck
1
Malmgren
1
McIntosh
1
Noire
1
Onega
1
Pacific
1
Queensland
1
Roten
1
Rouse
1
Treadwell
1
White Sea
1
Wilkes Land
1