Scientific name	Latitude	Longitude	Year	Month	Basis of record	Dataset	Institution code	Collection code	Locality
Gorgonocephalus chilensis (Philippi, 1858)	-53.733	-66.267	1964	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Cape Penas
Astrotoma agassizii Lyman, 1875	-55.4	-35.37	1986	12	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	South Georgia Island
Astrotoma agassizii Lyman, 1875	-77.43	163.83	1958	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Victoria Land, Mcmurdo Sound, About 2 Miles Near Cape Bernacchi
Astrotoma agassizii Lyman, 1875	-77.533	-163.058	1968	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology
Astrotoma agassizii Lyman, 1875	-55.01	-37.71	1975	6	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	South Georgia Island, south side of island
Astrotoma agassizii Lyman, 1875	-53.88	-35.82	1986	12	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	South Georgia Island
Gorgonocephalus chilensis (Philippi, 1858)	-54.648	-64.5	1971	11	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Staten Island
Astrotoma agassizii Lyman, 1875	-77.975	178.083	1968	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Victoria Land
Astrohamma tuberculatum (Koehler, 1923)	-64.8417	-63.25	1966	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Antarctic Peninsula, PAlmer Archipelago, Brabant Island, west of island
Astrotoma agassizii Lyman, 1875	-54.0808	-60.2847	2006	5	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Burdwood Bank
Astrochlamys bruneus Koehler, 1912	-54.68	-38.7	1986	12	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	South Georgia Island
Astrotoma agassizii Lyman, 1875	-73.975	170.908	1968	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Victoria Land
Astrotoma murrayi (Lyman, 1879)	-51.0367	-42.7933	1975	5	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology
Gorgonocephalus chilensis (Philippi, 1858)	-51.5667	-68.0	1888	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Grande Bay, East of
Astrotoma agassizii Lyman, 1875	-62.658	-56.15	1963	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	South Shetland Islands, King George Island
Astrotoma agassizii Lyman, 1875	-77.975	178.083	1968	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Victoria Land
Astrotoma agassizii Lyman, 1875	-76.008	-176.767	1968	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology
Astrotoma agassizii Lyman, 1875	-66.617	162.958	1967	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Balleny Islands, Buckle Island
Astrochlamys bruneus Koehler, 1912	-56.2	-27.3983	1975	6	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Zavodovski Island, NE of Island
Astrotoma agassizii Lyman, 1875	-77.525	-172.458	1968	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	center of sea