NAME 
Abington, ‘Rif: see Abington Reef 
Abington Reef 
Abra Canyon 
Abraham Canyon 
Abraham Sea Valley: see Abraham Canyon 
Abrblhos Bank 
Académie des Sciences de l’URSS, 
Massif sous-marin del’: see An Rise 
Acapulco, Fosse d’; see Middle America Trench 
Acapulco Trench: see Middle America Trench 
Accomac Canyon 
Acis Shoals 
Acor Bank 
Adak Basin 
Adak Canyon 
Adams Bank 
Adams Seamount 
Addington, Banc: see Addington Patch 
Addington Patch 
Adelie Depression: see Mertz-Ninnis Valley 
Adélie Trough: see Adélie Valley 
Adélie Valley 
Admiral Tsenker, Gora: see Zenker Seamount 
Admiral Zenker: see Zenker Seamount 
Adolph Knoll: see Adolph Seamount 
Adolph Seamount 
Adriatic Basin 
Adriatic Plain 
Adventure Bank 
Afanasii Nikitin: see Nikitin Seamount 
Afanasiya Nikitina, Gora: see Nikitin Seamount 
Afanasiy Nikitin: see Nikitin Seamount 
Afanasiy Nikitin Massif: see Nikitin Seamount 
Africana Seamount 
Africana II Bank 
Afrikansko-Antarkticheskaya Kotlovina: 
see Atlantic-Indian Basin 
Afrikansko-Antarkticheskaya Vozvushennost’: 
see Atlantic-Indian Ridge 
Afrikansko-Antarkticheskiy Khrebet: 
see Atlantic-Indian Ridge 
Afungi Canyon 
Agadak Canyon: see Ayugedak Canyon 
Agadir Canyon 
Aganak Canyon 
Agassiz Fracture Zone 
Agassiz Valleys 
Agattu Canyon 
Agattu Sea Valley: see Agattu Canyon 
Agerholm Seamount 
Aguja Canyon 
DESIG. 
reef 
reef 
canyon 
canyon 
canyon 
bank 
rise 
trench 
trench 
canyon 
reefs 
bank 
basin 
canyon 
bank 
seamount 
reef 
reef 
valley 
valley 
valley 
seamount 
seamount 
seamount 
seamount 
basin 
plain 
bank 
seamount 
seamount 
seamount 
seamount 
seamount 
bank 
basin 
ridge 
ridge 
canyon 
canyon 
canyon 
canyon 
fracture zone 
valleys 
canyon 
canyon 
seamount 
canyon 
LAT. 
18°00'S 
18°00'S 
17°31'N 
52°37'N 
52°37'N 
18°30'S 
49°30'N 
15°00'N 
15°00'N 
37°46'N 
3°45'N 
38°10'N 
51°05'N 
51°25'N 
41°20'S 
50°01'N 
15°36'N 
15°36'N 
67°25'S 
65°30'S 
65°30'S 
41°00'S 
41°00'S 
11°55'S 
LO 5IS 
42°00'N 
41°50'N 
37°20'N 
3°00'S 
3°00'S 
3°00'S 
3°00'S 
37°10'S 
46°00'S 
60°00'S 
53°00'S 
53°00'S 
10°47'S 
51°30'N 
32°30'N 
51°55'N 
38°15'S 
24°00'N 
52°23'N 
52°23'N 
34°25'N 
11°40’N 
LONG. 
149°45'E 
149°45'E 
120°22'E 
172°20'E 
172°20'E 
38°45'W 
150°00'E 
95°00'W 
95°00'W 
74°02'W 
IW Weh2)| 3 
29°20'W 
177°00'W 
177°05'W 
176°00'E 
176°14'W 
114°24'E 
114°24'E 
146°00'E 
136°00'E 
136°00'E 
6°00'W 
6°00'W 
178°10'W 
178°10'W 
17°30'E 
W551 
12°10’E 
83°00'E 
83°00'E 
83°00'E 
83°00'E 
29 NOE 
42°30'E 
15°00'E 
15°00'E 
15°00'E 
40°47'E 
178°07'E 
12°50'W 
177°18'W 
127°15'W 
82°45'W 
17 22301E 
W273 5)12 
135°35'W 
74°10'W 
