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37 results for “Viviparidae”
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.
Figure 20 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 20. Scanning electron micrographs of the radula of Tchangmargarya yangtsunghaiensis from Lake Yangzonghai: A, central tooth; B, lateral tooth; C, inner marginal tooth; D, outer marginal tooth.
Figure 21 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 21. Comparison of the species of Tchangmargarya with respect to parameters H and W/H.
Supplementary material 1 from: Zhang L-J, Du L-N, von Rintelen T (2023) A new genus of river snails, Dalipaludina (Gastropoda, Viviparidae), endemic to the Yunnan Plateau of SW China. Zoosystematics and Evolution 99(2): 285-297. https://doi.org/10.3897/zse.99.102586
Accession numbers and museum voucher numbers
Figure 10 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 10. Shells of Margarya melanioides: A, original figure of M. melanioides (Anderson, 1878); B, Lake Cibi, FG164279, 66.2 mm; C, living individuals in the market of Dali City, harvested from Lake Erhai (photo taken by Ye Liu, 2011.6.); D, original figure of variety tuberculata (Neumayr, 1887); E, Lake Dianchi, DCGYS 2, 63.2 mm; F, Lake Jianhu, JH 7, 94.7 mm; G, original figure of variety delavayi (Mabille, 1886); H, variety with four keels, Lake Dianchi, DCXHJ 8, 52.9 mm; I, Lake Erhai, EHCC10, 55.4 mm; J, original figure of variety carinata (Neumayr, 1887).
Figure 8 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 8. Operculum morphology (inner surface): A, Margarya oxytropoides; B, Margarya melanioides; C, Margarya monodi; D, Margarya francheti; E, Tchangmargarya yangtsunghaiensis; F, Tchangmargarya multilabiata sp. nov.; G, Anularya mansuyi; H, Anularya bicostata; I, Cipangopaludina chinensis. J, characters measured for morphological analysis of operculum: HO, height of operculum; HOS, height of opercular scar; WO, width of operculum; WOS, width of opercular scar.
Figure 7 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 7. Skin colour and morpholgy of cephalic tentacles: A, Margarya melanioides; B, Margarya francheti; C, Margarya oxytropoides; D, Margarya monodi; E, Tchangmargarya yangtsunghaiensis (offered by Jin Chen); F, Anularya bicostata; G, head of male Margarya species; H, head of male Tchangmargarya species; I, head of male Anularya species. Abbreviations: ey, eye; lt, left tentacle; pb, proboscis; pn, penis (right tentacle).
Figure 23 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 23. Scanning electron micrographs of the radula of Tchangmargarya multilabiata sp. nov. from Lake Changhu: A, central tooth; B, lateral tooth; C, inner marginal tooth; D, outer marginal tooth.
Figure 16 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 16. Scanning electron micrograph showing radula of Margarya oxytropoides from Lake Dianchi: A, central tooth; B, lateral tooth; C, inner marginal tooth; D, outer marginal tooth.
Figure 1 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 1. Map showing the location of the lakes sampled in Yunnan Province, south-west China.
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