Scientific name	Latitude	Longitude	Year	Month	Basis of record	Dataset	Institution code	Collection code	Locality
Acirsa antarctica (E.A.Smith, 1907)	-73.033	176.867	1968	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Victoria Land
Acirsa antarctica (E.A.Smith, 1907)	-77.8567	166.647	1961	9	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Victoria Land, Mcmurdo Sound, Ross Island, NW Of Cape Armitage
Acirsa antarctica (E.A.Smith, 1907)	-67.508	-179.933	1967	2	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Scott Island Bank
Acirsa antarctica (E.A.Smith, 1907)	-72.008	172.508	1968	1	preserved specimen	NMNH Extant Specimen Records	USNM	Invertebrate Zoology	Victoria Land
Acirsa symphylla (Martens, 1878)	-49.42333	71.86166	1974	4	preserved specimen	The molluscs collection (IM) of the Muséum national d'Histoire naturelle (MNHN - Paris)	MNHN	IM
Acirsa symphylla (Martens, 1878)	-50.17833	69.81167	1974	4	preserved specimen	The molluscs collection (IM) of the Muséum national d'Histoire naturelle (MNHN - Paris)	MNHN	IM	SE Kerguelen
Acirsa symphylla (Martens, 1878)	-47.415	66.06667	1974	4	preserved specimen	The molluscs collection (IM) of the Muséum national d'Histoire naturelle (MNHN - Paris)	MNHN	IM	NW Kerguelen
Acirsa symphylla (Martens, 1878)	-50.63167	71.59666	1974	4	preserved specimen	The molluscs collection (IM) of the Muséum national d'Histoire naturelle (MNHN - Paris)	MNHN	IM
Acirsa symphylla (Martens, 1878)	-49.475	71.88	1974	4	preserved specimen	The molluscs collection (IM) of the Muséum national d'Histoire naturelle (MNHN - Paris)	MNHN	IM
Acirsa symphylla (Martens, 1878)	-46.23	50.66333	1982	3	preserved specimen	The molluscs collection (IM) of the Muséum national d'Histoire naturelle (MNHN - Paris)	MNHN	IM	E Ile des Cochons
Acirsa symphylla (Martens, 1878)	-48.72167	71.20667	1975	3	preserved specimen	The molluscs collection (IM) of the Muséum national d'Histoire naturelle (MNHN - Paris)	MNHN	IM	NNE
Acirsa symphylla (Martens, 1878)	-46.795	70.50333	1975	3	preserved specimen	The molluscs collection (IM) of the Muséum national d'Histoire naturelle (MNHN - Paris)	MNHN	IM	NNE
Acirsa symphylla (Martens, 1878)	-47.11678	70.46	1975	3	preserved specimen	The molluscs collection (IM) of the Muséum national d'Histoire naturelle (MNHN - Paris)	MNHN	IM	NNE
Acirsa symphylla (Martens, 1878)	-48.11667	67.54166	1975	3	preserved specimen	The molluscs collection (IM) of the Muséum national d'Histoire naturelle (MNHN - Paris)	MNHN	IM	NW
Acirsa symphylla (Martens, 1878)	-46.275	49.25667	1982	2	preserved specimen	The molluscs collection (IM) of the Muséum national d'Histoire naturelle (MNHN - Paris)	MNHN	IM	SW Ile des Cochons
Acirsa symphylla (Martens, 1878)	-46.2	50.77667	1976	4	preserved specimen	The molluscs collection (IM) of the Muséum national d'Histoire naturelle (MNHN - Paris)	MNHN	IM	Entre l'Ile de la Possession et l'Ile aux cochons
Acirsa antarctica (E.A.Smith, 1907)	-74.7733	178.39	1936	1	human observation	Biological observations from the Discovery Investigations 1925-1952	NIWA	Discovery Reports
Acirsa antarctica (E.A.Smith, 1907)	-77.5	166.5	1903		human observation	SOMBASE – Southern Ocean mollusc database: a tool for biogeographic analysis in diversity and evolution
Acirsa antarctica (E.A.Smith, 1907)	-74.4137	179.05	1913		human observation	SOMBASE – Southern Ocean mollusc database: a tool for biogeographic analysis in diversity and evolution
Acirsa antarctica (E.A.Smith, 1907)	-65.8333	54.3833	1930		human observation	SOMBASE – Southern Ocean mollusc database: a tool for biogeographic analysis in diversity and evolution