NAME 
Hodgkins Seamounts 
Hodgson Seamount 
Hohanu Seamount: see Hohonu Seamount 
Hohnhaus Seamount 
Hohonu Seamount 
Hoke Seamount 
Hokitika Canyon 
Hokkaido Rise 
Hokkaido Seamount 
Holmes Reef: see Holmes Reefs 
Holmes Reefs 
Holothuria Banks 
Home Knoll: see Home Seamount 
Home Seamount 
Honopu Canyon 
Honshu Seamount: see Smetanin Seamount 
Hook Ridge 
Hoopers Canyon 
Hopen-Bjérnéybanken: see Spitsbergen Bank 
Hopen Ridge: see Spitsbergen Bank 
Hopen Rise: see Spitsbergen Bank 
Hope Submarine Valley: see Hope Valley 
Hope Valley 
Hopkins Reef 
Hopps Reef 
Horizon Guyot: see Horizon Tablemount 
Horizon Tablemount 
Hornafjardardjup: see Hornafjardhardjup 
Hornafjardhardjup 
Horn Strath: see Hornsund Valley 
Hornsund Strath: see Hornsund Valley 
Hornsund Valley 
Horseshoe Abyssal Plain: see Horseshoe Plain 
Horseshoe Plain 
Horseshoe Seamount Group: see 
Horseshoe Seamounts 
Horseshoe Seamounts 
Horton Guyot: see Morton Seamount 
Hotspur Bank: see Hotspur Seamount 
Hotspur Seamount 
Hovgaard Fracture Zone 
Howard, Banc: see Howard Shoal 
Howard Shoal 
Howe-Chesterfield Swell: see Lord Howe Rise 
Howell Basin 
Howell Hook 
Howell Swell 
Hoyles Canyon 
Hoyt Hills 
Hsi Chiao: see West Reef 
Hsien-hou T’an: see Brown Reef 
I-48 
DESIG. 
seamounts 
seamount 
seamount 
seamount 
seamount 
seamount 
canyon 
rise 
seamount 
reefs 
reefs 
reefs 
seamount 
seamount 
canyon 
seamount 
ridge 
canyon 
bank 
bank 
bank 
valley 
valley 
reef 
reef 
tablemount 
tablemount 
valley 
valley 
valley 
valley 
valley 
plain 
plain 
seamounts 
seamounts 
seamount 
seamount 
seamount 
fracture zone 
reef 
reef 
rise 
basin 
ridge 
rise 
canyon 
hills 
reef 
reef 
LAT. 
53°30'N 
35°35'N 
19°11'N 
13°27'N 
19°11’N 
32°06'N 
42°20'S 
46°00'N 
42°50'N 
16°30'S 
16°30'S 
13°25'S 
12°55'S 
12°E5'S 
22°11'N 
40°30'N 
51°30'N 
46°06'S 
76°00'N 
76°00'N 
76°00'N 
70°00'N 
70°00'N 
10°52'N 
10°15'N 
19°40'N 
19°40'N 
63°40'N 
63°40'N 
76°40'N 
76°40'N 
76°40'N 
35°40'N 
35°40'N 
36°30'N 
36°30'N 
50°15'N 
17°55'S 
17°55'S 
78°00'N 
15°51'N 
15°51'N 
32°00'S 
42°17'N 
25°45'N 
42°16'N 
43°33'N 
31°20'N 
8°51'N 
10°39'N 
LONG. 
136°00'W 
58°40'W 
154°41'W 
179°11'W 
154°41'W 
126°56'W 
169°45'E 
155°00'E 
151°30'E 
147°55'E 
147°55'E 
126°00'E 
175°37'W 
175°37'W 
159°41'W 
146°45'E 
143°40'W 
171°00'E 
23°00'E 
23°00'E 
23°00'E 
175°00'W 
175°00'W 
116°15'E 
115°23'E 
168°30'W 
168°30'W 
14°54'W 
14°54'W 
14°45'E 
14°45'E 
14°45'E 
12°20'W 
12°20'W 
15°00'W 
15°00'W 
142°45'W 
35°55'W 
35°55'W 
1°30'E 
114°47'E 
114°47'E 
162°00'E 
68°44'W 
84°15'W 
68°31'W 
49°05'W 
78°30'W 
112°12'E 
117°27'E 
