Scientific name	Latitude	Longitude	Year	Month	Basis of record	Dataset	Institution code	Collection code	Locality
Cephalodiscus nigrescens Lankester, 1905	-65.97	-66.85	1959	4	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Antarctic Peninsula, Biscoe Islands, Lavoisier Island, North Of
Cephalodiscus M'Intosh, 1882	-54.48	-63.83	1971	10	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Staten Island
Cephalodiscus hodgsoni Ridewood, 1907	-62.6917	-56.0292	1983	4	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	South Shetland Islands, Bridgeman Island
Cephalodiscus densus Andersson, 1907	-77.5	166.07	1948	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Victoria Land, Mcmurdo Sound, Ross Island, Off Cape Royds
Cephalodiscus M'Intosh, 1882	-52.9	-75.342	1966	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Strait Of Magellan, west mouth of strait
Cephalodiscus hodgsoni Ridewood, 1907	-77.43	169.52	1956	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Victoria Land, Mcmurdo Sound
Cephalodiscus M'Intosh, 1882	-54.6467	-38.855	1975	6	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	South Georgia Island, south side of island
Cephalodiscus hodgsoni Ridewood, 1907	-77.6567	166.27	1960	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Victoria Land, Mcmurdo Sound
Enteropneusta	-53.6967	-37.9533	1975	5	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	South Georgia Island
Cephalodiscus nigrescens Lankester, 1905	-73.98	171.37	1968	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Victoria Land
Cephalodiscus nigrescens Lankester, 1905	-66.1283	-66.59	1982	3	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Antarctic Peninsula, Biscoe Islands, Lavoisier Island
Cephalodiscus M'Intosh, 1882	-55.017	-64.858	1964	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Staten Island, SW coast of island
Enteropneusta	-53.925	-71.225	1964	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Strait Of Magellan, Cape Froward
Cephalodiscus nigrescens Lankester, 1905	-77.67	-35.5	1959	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Coats Land, Vahsel Bay, Off Duke Ernst Bay
Cephalodiscus hodgsoni Ridewood, 1907	-66.3567	-66.7725	1973	3	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Antarctic Peninsula, Biscoe Islands, Lavoisier Island, Matha Strait, east SE of Island
Cephalodiscus nigrescens Lankester, 1905	-64.865	-63.6625	1973	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Antarctic Peninsula, Palmer Archipelago, Anvers Island, Neumayer Channel
Enteropneusta	-52.633	-74.942	1964	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Strait Of Magellan
Cephalodiscus fumosus John, 1931	-77.67	-35.5	1959	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Coats Land, Vahsel Bay, Off Duke Ernst Bay
Cephalodiscus hodgsoni Ridewood, 1907	-65.0108	-63.8544	1973	3	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Antarctic Peninsula, Wilhelm Archipelago, Lemaire Channel
Cephalodiscus nigrescens Lankester, 1905	-64.8436	-64.3154	1981	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Antarctic Peninsula, Palmer Archipelago, Janus Island, off Island