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FMIB Oursin regulier Longues Baguettes Place Sur le Dos Heterocentrotus mamillatus Agassiz.jpeg Oursin regulier Longues Baguettes Place Sur le Dos Heterocentrotus mamillatus Agassiz Subject Sea urchins Tag Invertebrates Cite book Explorations SousMarines Perrier Edmond Paris France Librairie Hachette et Cie Fig Creator Edmond