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Aporocidaris milleri / left: apical view, upper right: oral view, lower right: lateral view.
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Aporocidaris usarpi / upper left: apical view, upper right: lateral view, lower view: primary spines.
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Austrocidaris canaliculata / left: complete view, upper right: oral view, lower right: apical view.
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Austrocidaris spinulosa / left: complete view, right: detail of primary spines.
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Ctenocidaris geliberti.
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Ctenocidaris perrieri / left: complete view, right: detail of the oral view.
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Ctenocidaris polyplax / left: apical view, right: oral view (after Mortensen, 1950).
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Ctenocidaris rugosa / upper view: primary spine, lower view: oral side.
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""Ctenocidaris speciosa ""typical form"" / left: oral view, upper right: detail of the peri-oral area, lower right: primary spine.""
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""Ctenocidaris speciosa ""alleni form"" (after Fell, 1976).""
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Ctenocidaris spinosa / left: complete view, upper right: primary spine, lower right: peri-oral view with oral primaries.
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Notocidaris gaussensis / upper view: apical side, lower view: primary spine.
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Notocidaris lanceolata.
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Notocidaris mortenseni / left: complete view, upper view: upper primary spine, right view: oral primary spines.
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Notocidaris platyacantha.
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Notocidaris remigera / left: oral side, right: complete view.
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Rhychocidaris triplopora / left: complete view, right: ambulacral plates after Mortensen, 1909.
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Naked test of Phyllacanthus imperialis from New Caledonia, private collection.
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30.12.2019 27°42'11.57"N 34° 7'40.90"E Beacon Rock Dunraven, nightdive
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01.01.2020 27°40'40.90"N 33°48'20.35"E Bluff Point
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02.01.2019 24°22'35.07"N 35°23'21.63"E Suil island, nightdive
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Adult from Sulawesi. from McCormack, Gerald (2007) Cook Islands Biodiversity Database, Version 2007.2. Cook Islands Natural Heritage Trust, Rarotonga. Online at http://cookislands.bishopmuseum.org used with permission
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Adult from Sulawesi. from McCormack, Gerald (2007) Cook Islands Biodiversity Database, Version 2007.2. Cook Islands Natural Heritage Trust, Rarotonga. Online at http://cookislands.bishopmuseum.org used with permission
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Prionocidaris pistillaris from Salt Rock, Dolphin Coast, 4391, South Africa. Source : observation on iNatualist (https://www.inaturalist.org/observations/12373256).