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335 results for “freshwater lake”
Figure 28 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 28. Distribution of three genera and stratigraphic region of Yunnan (adapted from Yunnan Bureau of Geology and Mineral Resources, 1990): I1, Tengchong –Baoshan subregion of Yunnan–Tibet region; II1, Zhongdian subregion of Tethys region; II2, Lanping–Simao subregion of Tethys region; III1, Central Yunnan subregion of Yangtze region; IV1, Southeast Yunnan subregion of South China region. Number in legend shows the species at this locality. 2* indicate two fossil species.
Figure 25 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 25. Comparison of the species of Anularya gen. nov. from four lakes with respect to parameters H and W/H.
Figure 22 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 22. Shells of Tchangmargarya multilabiata sp. nov. from Lake Changhu: A, holotype, male individual, FG594250; B, paratype, male individual, CH 1, 59.2 mm; C, paratype, female individual, CH 2, 52.8 mm; D, paratype, CH 7, 52.4 mm; E, paratype, CH 35, 50.77 mm; F, paratype, five keels variety with totally purple calcareous layers, CHX 1, 53.3 mm; G, inner lip; H, juvenile shell with band, 15.4 mm (provided by Hao Yang).
Figure 19 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 19. Shells of Tchangmargarya yangtsunghaiensis: A, Lake Yangzonghai, YZHHY 14, 50.2 mm; B, Lake Yangzonghai, YZHHY 10, 54.6 mm; C, Lake Yangzonghai, four keels variety, YZHHY 29, 48.4 mm; D, subfossil from hill of Wanfu Temple, YZHWFS 5, 49.1 mm; E, holotype of Margarya yangtsunghaiensis, FG00001.
Figure 17. A–C in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 17. A–C, recent shells of Margarya monodi: A, Lake Dianchi, DCXHJ 1, 61.2 mm; B, Lake Dianchi, DCHK 1, 57.4 mm; C, Lake Dianchi, IZCAS FG89681, 50.0 mm; D, subfossil specimens, Haikou, Lake Dianchi (left to right: 60.6 mm, 67.3 mm, 61.5 mm, 65.1 mm); E, submature shell, DCHK 40, 38.2 mm; F, juvenile shell, 14.3 mm, taken from DCHK 1; G, holotype of Margarya elongata, FG00074; H, holotype of Margarya elongata var. yini, FG00096; I, holotype of Margarya tchangsii (Xia, 1982); J, original figure of Margarya monodi (Dautzenberg & Fischer, 1905).
Figure 15 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 15. Shells of Margarya oxytropoides: A, Lake Dianchi, DCXHJ 2, 65.9 mm; B, Lake Dianchi, DCXHJ 44, 53.1 mm; C, Lake Dianchi, DCXHJ 3, 54.1 mm; D, Lake Dianchi, DCHK 41, 62.1 mm; E, Lake Lugu (provided by Liu Ye); F, Lake Dianchi, FG68944, 41.0 mm; G, original figure of Paludina oxytropoides (Heude, 1889); H, juvenile shell, 14.2 mm.
Figure 14 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 14. Scanning electron micrograph showing radula of Margarya francheti from Lake Dianchi: A, central tooth; B, lateral tooth; C, inner marginal tooth; D, outer marginal tooth.
Figure 13 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 13. Shells of Margarya francheti: A, Lake Jianhu, JHFS 1, 86.9 mm; B, Lake Erhai, EHCC 11, 45.1 mm; C, Lake Dianchi, DCWLB 1, 58.3 mm; C, D, Lake Erhai, FG89708, 60.1 mm; E, holotype figure of Margarya francheti; F, holotype figure of Margarya tropidophora (E, F, from Mabille, 1886).
Figure 12 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 12. Mature juvenile shell of Margarya species: A, Margarya melanioides, JH 13, Lake Jianhu; B, Margarya francheti, EHCC 12, Lake Erhai; C, Margarya monodi, IZCAS FG89681, Lake Dianchi; D, Margarya oxytropoides, DCXHJ 44, Lake Dianchi.
Figure 11 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 11. Scanning electron micrographs of the radula of Margarya melanioides, Lake Jianhu: A, central tooth; B, lateral tooth; C, inner marginal tooth; D, outer marginal tooth.
Figure 24 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 24. Shells of Anularya mansuyi: A, Lake Yilong, FG140819, 61.6 mm; B, Lake Yilong, FG140820, 54.1 mm; C, subfossil from Luosipu Village, XYHLSP 1, 90.2 mm; D, Lake Qilu, QLH 2, 79.1 mm; E, Lake Qilu, QLH 52, 49.5 mm; F, fossil variety obsolete from rocks on a hill around Shiyanshao Village, XYSYS 12, 74.9 mm; G, fossil from rocks on a hill around Shiyanshao Village, XYSYS 1, 60.0 mm; H, specimens from Lake Yilong, YLH 1, 64.4 mm; I, submature shell from Lake Qilu, QLH 37, 42.3 mm; J, varieties from Lake Xingyun (left to right: 59.7 mm, 50.7 mm, 49.8 mm, and 50.8 mm).
Figure 5 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 5. Best maximum-likelihood (ML) phylogram based on analyses of Internal Transcribed Spacer 2 (ITS2) sequences. Numbers above branches indicate nodal support of the topology shown, by means of ML bootstrapping/MP bootstrapping/Bayesian posterior probabilities.
Figure 6 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 6. Umbilical views of the shells: A, Margarya melanioides; B, Margarya monodi; C, Margarya francheti; D, Margarya oxytropoides; E, Tchangmargarya multilabiata sp. nov.; F, Tchangmargarya yangtsunghaiensis; G, Anularya bicostata; H, Anularya mansuyi. Margarya with several weak spiral ribs; Tchangmargarya with two strong nodular spiral ribs; Anularya gen. nov. without any sculpture.
Figure 4 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 4. Best maximum-likelihood (ML) phylogram based on analyses of 16S rRNA. Numbers above branches indicate nodal support of the topology shown, by means of ML bootstrapping/MP bootstrapping/Bayesian posterior probabilities.
Figure 9 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 9. Comparison of the operculum of Cipangopaludina, Margarya, Tchangmargarya, and Anularya with respect to parameters WO–HO (width of operculum × height of of operculum) and rOS (relative operculum scar, width of opercular scar × height of opercular scar/WO–HO).
Figure 26 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 26. Shells of Anularya bicostata: A, Lake Fuxian, FXHHK 2, 61.3 mm; B, Lake Fuxian, FXHHK 1, 45.1 mm; C, Lake Fuxian, FXHHK 10, 53.8 mm; D, Lake Fuxian, FXHHK 6, 54.4 mm; E, Lake Fuxian, FXHHK 14, 40.6 mm; F, Lake Fuxian, FG89967, 45.3 mm; G, holotype of Margarya mansuyi var. bicostata, FG00089; H, juvenile shell, 12.0 mm; I, subfossil juvenile shell.
Figure 27 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 27. Scanning electron micrograph showing radula of Anularya bicostata from Lake Fuxian: A, central tooth; B, lateral tooth; C, inner marginal tooth; D, outer marginal tooth.
Figure 2 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 2. The phylogenetic relationships within the Margarya group, as indicated by the best maximum-likelihood (ML) tree for concatenated sequences of cytochrome c oxidase subunit I (COI) and 16S rRNA. Numbers above branches indicate nodal support of the shown topology by means of ML bootstrapping/maximum-parsimony (MP) bootstrapping/ Bayesian posterior probabilities.
Figure 3 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 3. Best maximum-likelihood (ML) phylogram based on analyses of cytochrome c oxidase subunit I (COI). Numbers above branches indicate nodal support of the topology shown, by means of ML bootstrapping/MP bootstrapping/ Bayesian posterior probabilities.
Figure 18 in Systematic revision of the freshwater snail Margarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa
Figure 18. Comparison of variety of Margarya monodi, type specimens of Margarya tchangsii and Margarya elongata (data from Tchang & Tsi, 1949; Xia, 1982), with respect to parameters H and W/H.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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