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73 results for “Patellogastropoda”
Figure 1 in Systematic revision of Nacella (Patellogastropoda: Nacellidae) based on a complete phylogeny of the genus, with the description of a new species from the southern tip of South America
Figure 1. Distribution of Nacella in different provinces of the Southern Ocean, including South America, maritime Antarctica and sub-Antarctic Islands. Major ocenographic currents and sudivisions includes SAACF = Southern ACC Front, PF = Polar Front, and SAF = sub-Antarctic Front. Coloured areas show the distribution of the analysed species.
Figure 13 in Systematic revision of Nacella (Patellogastropoda: Nacellidae) based on a complete phylogeny of the genus, with the description of a new species from the southern tip of South America
Figure 13. Evolutionary relationships of sampled Nacella (Nacellidae) based on the concatenated datasets of the cytochrome c oxidase subunit I (659 bp) and the 28S rRNA (839 bp) genes. Bayesian maximum clade credibility tree of Nacella relationships based on mtDNA (COI) and nucDNA (28S rRNA) sequences. Bootstrap support values for MP, ML and Bayesian posterior probabilities are shown above the nodes (in that order). Maps and colours indicate major sampled areas.
Figure 2 in Systematic revision of Nacella (Patellogastropoda: Nacellidae) based on a complete phylogeny of the genus, with the description of a new species from the southern tip of South America
Figure 2. Nacella yaghana sp. nov. Pía and Garibaldi fjords, Beagle Channel, southern South America. Scale bar = 1.0 cm for all unless specified otherwise. A, B = Pía Fjord, C = Garibaldi Fjord. A–F, shell morphology and coloration of Nacella yaghana sp. nov. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot colorations. H, radula. I, distribution. J–K, radular morphology (SEM).
Figure 8 in Systematic revision of Nacella (Patellogastropoda: Nacellidae) based on a complete phylogeny of the genus, with the description of a new species from the southern tip of South America
Figure 8. Nacella concinna, maritime Antarctica. Scale bar = 1.0 cm for all unless specified otherwise. A = Fildes Bay, South Shetland Islands, B = Marguerite Bay, Anvers Island, C = South Georgia. A–F, shell morphology and coloration of Nacella concinna. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution.
Figure 12 in Systematic revision of Nacella (Patellogastropoda: Nacellidae) based on a complete phylogeny of the genus, with the description of a new species from the southern tip of South America
Figure 12. Nacella terroris, Campbell Island, sub-Antarctic New Zealand. Scale bar = 1.0 cm for all unless specified otherwise. A–C, Perseverance Harbour, Campbell Island. A–F, shell morphology and coloration of Nacella terroris. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution.
Figure 5 in Systematic revision of Nacella (Patellogastropoda: Nacellidae) based on a complete phylogeny of the genus, with the description of a new species from the southern tip of South America
Figure 5. Nacella deaurata, Patagonia, South America. Scale bar = 1.0 cm for all unless specified otherwise. A = Port Famine, B = Navarino Island, C = Falkland/Malvinas. A–F, shell morphology and coloration of Nacella deaurata. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution.
Figure 7 in Neolepetopsid true limpets (Gastropoda: Patellogastropoda) from Indian Ocean hot vents shed light on relationships among genera
Figure 7. Eulepetopsis crystallina sp. nov.. A, holotype (NSMT-Mo 79222), Kairei field, Central Indian Ridge, shell length (SL) 8.4 mm. B, paratype 1 (NSMT-Mo 79223), Kairei field, SL 8.7 mm. C, paratype 2 (NSMT-Mo 79224), Kairei field, SL 10.8 mm. D, a specimen from Edmond field, Central Indian Ridge (NSMT-Mo 79226), with thick sulfide covering partly removed, SL 11.8 mm. E, a specimen from Tiancheng field, Southwest Indian Ridge (RSIO 35734), SL 14.0 mm. F, a specimen from Wocan field, Carlsberg Ridge (RSIO 38215) covered by a thin layer of sulfide deposits, SL 12.9 mm. G, close-up of the internal surface of the shell of paratype 2 (NSMT-Mo 79224) showing the attachment area of the radial pallial muscles. Scale bars: 2 mm in A–F; 1 mm in G.
Figure 8 in Neolepetopsid true limpets (Gastropoda: Patellogastropoda) from Indian Ocean hot vents shed light on relationships among genera
Figure 8. Eulepetopsis crystallina sp. nov., scanning electron micrographs. A, exterior shell surface showing a close-up of the corroded apex. B, C, close-up of the shell interior showing zigzagged crystal edges and shell pores (arrowheads in C). D, radula. Scale bars: 1 mm in A; 200 µm in B; 50 µm in C; 20 µm in D.
Figure 10 in Neolepetopsid true limpets (Gastropoda: Patellogastropoda) from Indian Ocean hot vents shed light on relationships among genera
Figure 10. Consensus tree of Patellogastropoda from phylogenetic reconstruction using Bayesian inference, based on 472 bp of the mitochondrial COI gene at the barcoding region. Node values indicate Bayesian posterior probabilities, shown only for those> 0.7. GenBank accession numbers of the sequences used are indicated in parentheses after the authority and date for each species.
Figure 6 in Neolepetopsid true limpets (Gastropoda: Patellogastropoda) from Indian Ocean hot vents shed light on relationships among genera
Figure 6. Neolepetopsis ardua sp. nov., external anatomy (paratype 1, NSMT-Mo 79219). Left, dorsal view after removal of the shell; right, ventral view. Abbreviations: a, anus; dg, digestive gland; f, foot; i, intestine; ll, labial lappet; m, mouth; me, mantle edge; ol, outer lip of the mouth; ov, ovary; pc, pericardium; r, rectum; rk, right kidney; s, stomach; sm, shell muscles; sp, sensory papillae; t, cephalic tentacle; up, urinogenital papilla. Scale bar: 1 mm.
Figure 2. Neolepetopsis species. A–D in Neolepetopsid true limpets (Gastropoda: Patellogastropoda) from Indian Ocean hot vents shed light on relationships among genera
Figure 2. Neolepetopsis species. A–D, Neolepetopsis prismatica sp. nov., type specimens from the Wocan field, Carlsberg Ridge. A, holotype (RSIO 38210), shell length (SL) 4.1 mm. B, paratype 1 (NSMT-Mo 79214), SL 4.2 mm. C, paratype 2 (RSIO 38211), SL 4.0 mm. D, paratype 3 (NSMT-Mo 79215), SL 3.5 mm. E, Neolepetopsis ardua sp. nov. from the Longqi field, Southwest Indian Ridge, holotype (RSIO 49001), with and without the soft parts, SL 5.1 mm. Scale bars: 1 mm.
Figure 9 in Neolepetopsid true limpets (Gastropoda: Patellogastropoda) from Indian Ocean hot vents shed light on relationships among genera
Figure 9. Eulepetopsis crystallina sp. nov., external anatomy (paratype 1, NSMT-Mo 79223). Left, dorsal view after removing the shell; right, ventral view. Abbreviations: a, anus; dg, digestive gland; f, foot; i, intestine; j, jaw projecting from the mouth; ll, labial lappet; me, mantle edge; ol, outer lip of the mouth; pc, pericardium; r, rectum; rk, right kidney; s, stomach; sm, shell muscles; sp, sensory papillae; t, cephalic tentacle; te, testis; up, urinogenital papilla. Scale bar: 1 mm.
Figure 5 in Neolepetopsid true limpets (Gastropoda: Patellogastropoda) from Indian Ocean hot vents shed light on relationships among genera
Figure 5. Neolepetopsis ardua sp. nov., scanning electron micrographs. A, apex. B, details of the shell sculpture. C, D, radula. Scale bars: 100 µm in A; 200 µm in B; 10 µm in C, D.
Figure 1 in Neolepetopsid true limpets (Gastropoda: Patellogastropoda) from Indian Ocean hot vents shed light on relationships among genera
Figure 1. Map showing the locations of the deep-sea hydrothermal vents sampled for the present study. A, overview. B, close-up of the Central Indian Ridge area near the Rodriguez Triple Junction. Key: 1, Wocan field, Carlsberg Ridge; 2, Edmond field, Central Indian Ridge; 3, Kairei field, Central Indian Ridge; 4, Tiancheng field, Southwest Indian Ridge; 5, Longqi field, Southwest Indian Ridge. The maps were generated using the General Bathymetric Chart of the Oceans (GEBCO; https://www.gebco.net/) grid display software and GEBCO 1 arc-min interval grid using the Mercator projection.
Figure 3 in Neolepetopsid true limpets (Gastropoda: Patellogastropoda) from Indian Ocean hot vents shed light on relationships among genera
Figure 3. Neolepetopsis prismatica sp. nov., scanning electron micrographs. A, B, protoconch. Arrowheads indicate the limits of the protoconch. A, side view. B, dorsal view. C, details of the shell sculpture. D, E, radula. Scale bars: 100 µm in A, B; 250 µm in C; 5 µm in D, E.
Figure 4 in Neolepetopsid true limpets (Gastropoda: Patellogastropoda) from Indian Ocean hot vents shed light on relationships among genera
Figure 4. Neolepetopsis prismatica sp. nov., external anatomy (paratype 1, NSMT-Mo 79214). Left, dorsal view after removal of the shell; right, ventral view. Abbreviations: a, anus; dg, digestive gland; f, foot; i, intestine; ll, labial lappet; m, mouth; me, mantle edge; ol, outer lip of the mouth; pc, pericardium; r, rectum; rk, right kidney; sm, shell muscles; sp, sensory papillae; t, cephalic tentacle; te, testis; up, urinogenital papilla. Scale bar: 1 mm.
Figure 8 from: Muratov IV, Heyns-Veale E (2020) Primary types in the collection of molluscs in the KwaZulu-Natal Museum: Patellogastropoda and Lepetellida. African Invertebrates 61(1): 49-81. https://doi.org/10.3897/afrinvertebr.61.51989
Figure 8 Emarginula phrygium Herbert & Kilburn, 1986. Holotype T3012/NMSA-MOL 0C6844. Scale bar: 5 mm.
Figure 19 from: Muratov IV, Heyns-Veale E (2020) Primary types in the collection of molluscs in the KwaZulu-Natal Museum: Patellogastropoda and Lepetellida. African Invertebrates 61(1): 49-81. https://doi.org/10.3897/afrinvertebr.61.51989
Figure 19 Scissurella maraisorum Geiger, 2006. Holotype T1616/NMSA-MOL 0W3498. Scale bars shell: 500 μm, protoconch: 100 μm. After Geiger (2006: 10, figure 7).
Figure 11 from: Muratov IV, Heyns-Veale E (2020) Primary types in the collection of molluscs in the KwaZulu-Natal Museum: Patellogastropoda and Lepetellida. African Invertebrates 61(1): 49-81. https://doi.org/10.3897/afrinvertebr.61.51989
Figure 11 Puncturella (Vacerrena) christiaensi Kilburn, 1978. Holotype T2204/NMSA-MOL 0B230. Scale bar: 1 mm.
Figure 10 from: Muratov IV, Heyns-Veale E (2020) Primary types in the collection of molluscs in the KwaZulu-Natal Museum: Patellogastropoda and Lepetellida. African Invertebrates 61(1): 49-81. https://doi.org/10.3897/afrinvertebr.61.51989
Figure 10 Emarginula viridicana Herbert & Kilburn, 1986. Holotype T3021/NMSA-MOL 0B8749. Scale bar: 10 mm.
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