Table 1.

Field campaigns during which echinoids of the dataset were collected. MNHN.

Campaigns	Year	Occurrence Nb	Research vessels	References	Collections
Challenger Expedition	1872	9	Challenger	A. Agassiz 1879, 1881	National History Museum, London
Gazelle Expedition	1874–76	1	Gazelle	Studer 1876	Museum für Naturkunde, Berlin
Deutsche Tiefsee Expedition	1898–99	3	Valdivia	Döderlein 1906	Museum für Naturkunde, Berlin
Deutsche Südpolar Expedition	1901–03	2	Gauss	Mortensen 1909	Museum für Naturkunde, Berlin
BANZAR Expedition	1929	9	Discovery	Mortensen 1950	National Museum of Australia, Acton
Kerguelen 1962–63	1962–63	8	-	Grua 1963	MNHN, Paris
Eltanin Expedition	1962–72	1	Eltanin	Fell 1976	Smithsonian Institution, Washington
Ker72	1972	5	Japonaise	Guille 1977	MNHN, Paris
MD03	1974	32	Marion Dufresne	De Ridder et al. 1992	MNHN, Paris
MD04	1975	130	Marion Dufresne	De Ridder et al. 1992	MNHN, Paris
SIBEX MD42	1985	13	Marion Dufresne	Pierrat et al. 2012	MNHN, Paris
1985 ANARE Expedition	1985	5	Nella Dan	Burton and Williams 1985	National Museum of Australia, Acton
Benthos/mac	1991	22	Curieuse	Poulin and Féral 1995	Banyuls oceanological observatory
1992 ANARE Expedition	1992	18	Aurora Australis	Green 1993	National Museum of Australia, Acton
Cruise SC26	2003	2	Southern Champion	Pierrat et al. 2012	Australian Antarctic Division, Kingston
POKER II	2010	111	Austral	this study	MNHN, Paris
PROTEKER 2	2013	52	Curieuse	Féral et al. 2013	MNHN, Paris
PROTEKER 3	2014	7	Curieuse	Féral et al. 2014	MNHN, Paris
PROTEKER 4	2015	5	Commerson	Saucède et al. 2015b	MNHN, Paris