Animalia > Echinodermata > Echinoidea > Arbacioida > Arbaciidae > Protechinus ProtechinusSynonyms: Hattopsis; Noetlingaster; Noetlingia
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Animalia > Echinodermata > Echinoidea > Arbacioida > Arbaciidae > Protechinus ProtechinusSynonyms: Hattopsis; Noetlingaster; Noetlingia
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