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Figure 8; Georissa williamsi Godwin-Austen, 1889. A–I RMNH/MOL 333946 A, D shell apertural view B shell side view C shell rear view E, F shell cross-section from 3D model G shell top view H protoconch side view I close up of protoconch from top at 1000 × magnification. Scale bars: 500 µm (A–G); 200 µm (H); 10 µm (I).
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Georissa decora Von Moellendorff, 1900
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Georissa japonica Pilsbry, 1900
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Figure 12; Georissa niahensis Godwin-Austen, 1889. A–K MZU/MOL 17.25 A, D Shell apertural view B Shell side view C Shell rear view E–F Shell cross-section from 3D model G–H Operculum frontal and ventral view I Shell top view J Protoconch side view K Close up of protoconch from top at 1000× magnification. Scale bars: 1 mm (A–I); 200 µm (J); 10 µm (K).
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Figure 7; Georissa everetti Smith, 1895. A–K JJV 10185 A, D shell apertural view B shell side view C shell rear view E, F shell cross-section from 3D model G, H operculum frontal and ventral view from 3D model I shell top view J protoconch side view K close up of protoconch from top at 1000 × magnification. Scale bars: 500 µm (A–I); 200 µm (J); 10 µm (K).
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Figure 8; FAMILY HYDROCENIDAE. A Georissa saulae (BOR/MOL 27) B Georissa scalinella (BOR/MOL 41) C Georissa williamsi (BOR/MOL 7174).
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Figure 10; Georissa leucococca Vermeulen et al., 2015. A–I JJV 12572 A, D shell apertural view B shell side view C shell rear view E, F shell cross-section from 3D model G shell top view H protoconch side view I close up of protoconch from top at 1000 × magnification. Scale bars: 500 µm (A–G); 200 µm (H); 10 µm (I).
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Georissa quadrasi Von Moellendorff, 1895
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Figure 5; Georissa scalinella (van Benthem-Jutting, 1966). A–C Holotype: ZMA/MOL/ 135736 D–K Paratypes: ZMA/MOLL 135735. A, D Shell apertural view B Shell side view C Shell rear view E–F Shell cross-section from 3D model G–H Operculum frontal and ventral view I Shell top view J Protoconch side view K Close up of protoconch from top at 1000× magnification. Scale bars: 500 µm (A–I); 200 µm (J); 10 µm (K).
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Georissa similis Smith, 1893
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Figure 15; Georissa pachysoma Vermeulen & Junau, 2007. A–K MZU/MOL 17.64 A, D shell apertural view B shell side view C shell rear view E, F shell cross-section from 3D model G, H operculum frontal and ventral view from 3D model I shell top view J protoconch side view K close up of protoconch from top at 1000 × magnification. Scale bars: 500 µm (A–I); 200 µm (J); 10 µm (K).
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Figure 14; Georissa bauensis sp. n. A–C Holotype: MZU/MOL 17.89 D–K Paratypes: MZU/MOL 16.03. A, D Shell apertural view B Shell side view C Shell rear view E–F Shell cross-section from 3D model G–H Operculum frontal and ventral view I Shell top view J Protoconch side view K Close up of protoconch from top at 1000× magnification. Scale bars: 500 µm (A–I); 200 µm (J); 10 µm (K).