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12 results for “Neritopsina”
FIG. 5 in A new Neritopsidae (Mollusca, Gastropoda, Neritopsina) from French Polynesia
FIG. 5. — Operculum of Neritopsis moniliformis Grateloup, 1832, type species of the genus, from the upper Oligocene of France (Aquitaine Basin), Peyrehorade, showing the outer (A) and the inner (B) surfaces; width 7.7 mm.
FIG. 3. — A-D, Neritopsis richeri n in A new Neritopsidae (Mollusca, Gastropoda, Neritopsina) from French Polynesia
FIG. 3. — A-D, Neritopsis richeri n. sp., holotype MNHN 21374, BENTHAUS stn DW 1993, maximum width 23.2 mm; E-H, N. radula (Linnaeus, 1758), specimen from New Caledonia, Touho, Montrouzier expedition stn 1272 (10 m), maximum width 29 mm.
FIG. 2. — Neritopsis richeri n in A new Neritopsidae (Mollusca, Gastropoda, Neritopsina) from French Polynesia
FIG. 2. — Neritopsis richeri n. sp., paratype MNHN 21375, BENTHAUS stn DW 1993, maximum width 8.8 mm: A, protoconch; B, ontogeny of sculpture on teleoconch whorls. Scale bars: A, 200 μm; B, 2 mm.
FIG. 4. — Neritopsis richeri n in A new Neritopsidae (Mollusca, Gastropoda, Neritopsina) from French Polynesia
FIG. 4. — Neritopsis richeri n. sp.: A-D, paratype MNHN 21375, BENTHAUS stn DW 1993, maximum width 12 mm; E-H, specimen from Marquesas Islands, Hiva Ova, MUSORSTOM 9, stn DW 1208, maximum width 13.8 mm.
Figure 7 in The European Tertiary Neritiliidae (Mollusca, Gastropoda, Neritopsina): indicators of tropical submarine cave environments and freshwater faunas
Figure 7. Location of the Peyrère outcrop in the late Oligocene to mid Miocene fill of the Saubrigues palaeocanyon (from Kieken, 1973; Cahuzac et al., 1995).
Figure 6 in The European Tertiary Neritiliidae (Mollusca, Gastropoda, Neritopsina): indicators of tropical submarine cave environments and freshwater faunas
Figure 6. Pisulinella sp. from Mimbaste (Lower Miocene). A, apical view of the protoconch; arrow indicates the embryonic shell (MNHN-PL15356). B, enlarged portion of the protoconch showing the spiral ridges.
Figure 4 in The European Tertiary Neritiliidae (Mollusca, Gastropoda, Neritopsina): indicators of tropical submarine cave environments and freshwater faunas
Figure 4. Bourdieria faviai sp. nov. from Peyrère (Upper Oligocene). A, broken specimen (apical whorls removed) showing (arrowed) the ridge inside the aperture (MNHN-PL1634E). B & C, juvenile specimen of 0.8 adult whorl (MNHN- PL1634C). B, apical view of the protoconch showing the position of three weak ridges (arrowed). D-F, views of the holotype (MNHN-PL1634A); D, apertural view, E, right lateral view, F, dorsal view. G, view of the apical part showing the ridges of the protoconch (arrow). H, broken specimen showing internal view of the columellar area. I & J, apical view of the protoconch; arrow indicates the embryonic shell. I, detail of the embryonic shell.
Figure 5 in The European Tertiary Neritiliidae (Mollusca, Gastropoda, Neritopsina): indicators of tropical submarine cave environments and freshwater faunas
Figure 5. Pisulinella? aucoini sp. nov. from Meilhan (Lower Miocene). A, broken specimen (apical whorls removed) showing (arrowed) the ridge inside the aperture (MNHN-PL15356B). B & C, holotype (MNHN-PL15355A). B, in apertural view; C in right lateral view.
Figure 2 in The European Tertiary Neritiliidae (Mollusca, Gastropoda, Neritopsina): indicators of tropical submarine cave environments and freshwater faunas
Figure 2. Neritilia bisinuata sp. nov. from Bois-Gouët (Middle Eocene). A, apertural view of the holotype (MNHN- LR67776A); B, apical view of a paratype (MNHN-LR67776B), C, apical view of the protoconch; arrow indicates the embryonic shell.
Figure 3. A-J in The European Tertiary Neritiliidae (Mollusca, Gastropoda, Neritopsina): indicators of tropical submarine cave environments and freshwater faunas
Figure 3. A-J, Neritilia neritinoides (Cossmann & Peyrot, 1917). K & L, Vitta picta (Férussac, 1825). A-D, operculum. E, apertural view (MNHN-PL15281). F, apical view of the protoconch. G, enlarged portion of the protoconch showing minute pits (MNHN-PL4185). H, apertural view. I, right lateral view. J, dorsal view (MNHN-PL14078). K, apical view of the protoconch. L, juvenile specimen of 0.8 whorl with operculum showing a tooth (arrowed) on the inner lip (MNHN-PL15385). Sources of specimens: A-E, Lucbardez; F & G, Pessac; H-L, Mimbaste (all Lower Miocene).
Figure 1 in The European Tertiary Neritiliidae (Mollusca, Gastropoda, Neritopsina): indicators of tropical submarine cave environments and freshwater faunas
Figure 1. Location of the fossil localities (★).
Figure 9 in The European Tertiary Neritiliidae (Mollusca, Gastropoda, Neritopsina): indicators of tropical submarine cave environments and freshwater faunas
Figure 9. Geographic distribution of the Recent marine Neritiliidae (dotted line) and principal occurrences of the genus Pisulina (•); fossil occurrences of the marine Neritiliidae (O); occurrences of the Recent (★) and fossil (✩) freshwater Neritiliidae.
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