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Siboga Expeditie XLIX Prosobranchia Schepman Plate VIII. Schepman org The Prosobranchia of the Siboga Expedition Part Rhipidoglossa and Docoglossa with an appendix by Bergh Uitkomsten op zoologisch botanisch oceanografisch en geologisch gebied verzameld in Nederlandsch OostIndi aan boord Siboga Monographie Brill Leyden pp plates