Geographic location
Pacific
56
Antarctic
17
Antarctic Ocean
7
Falkland Plateau
4
New Zealand
4
Rugosa
4
The Antarctic
4
Indian
3
Austral
2
Kennett
2
Southern Ocean
2
Weddell
2
Weddell Sea
2
Argentine
1
Drake Passage
1
East Antarctic Ice Sheet
1
Ewing
1
Greenland
1
Hess
1
Kamchatka Peninsula
1
Keller
1
Maud Rise
1
Maurice
1
Maurice Ewing Bank
1
Mitra
1
Rockall Plateau
1
Ross Island
1
Shackleton
1