A new species of Brotia from Yunnan, China (Caenogastropoda, Pachychilidae)

Köhler, Frank; Du, Lei; Yang, Jing

doi:10.1002/zoos.201000012

Cited by 10 publications

(2 citation statements)

References 15 publications

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“…Northern Myanmar is separated into three freshwater catchments (Conallin et al, 2019): the massive upper Ayeyarwady basin, which covers the central part of this area; the Chindwin River, a tributary of the Ayeyarwady, which is situated to the west of it and is bounded by the Naga Hills Range; and the Salween River, which runs through a narrow mountain valley in the eastern part of Shan State. It is known that the upper Ayeyarwady basin harbours a number of endemic animals, such as amphibians (Poyarkov et al, 2019;Zaw et al, 2019), fish (Britz, 2010;Kottelat, 2017;Kullander, 2017), crustaceans (Dumont & Green, 2005;Ng, Mar & Shih, 2020), and gastropods (Köhler, Li-Na & Jun-Xing, 2020). The fauna of freshwater insects in this area seems to represent a rather species-rich assemblage, but it is poorly known, with only a few recent reports on new and rare taxa being available (Bolotov et al, 2014;Liu & Dvorak, 2017).…”

Section: Introductionmentioning

confidence: 99%

A riverine biodiversity hotspot in northern Myanmar supports three new and narrowly endemic freshwater mussel species

Bolotov

Konopleva

Chan³

et al. 2022

Aquatic Conservation

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1. The Western Indochina Subregion (Myanmar) represents a freshwater biodiversity hotspot of worldwide significance and houses a plethora of endemic freshwater species, among which are amphibians, fish, and various aquatic invertebrates.2. The freshwater mussel (Bivalvia: Unionidae) fauna of western Indochina is characterized by high taxonomic richness, with almost all species and several genera being endemic to the subregion. Furthermore, there are a number of species endemic to a single basin or even to a single tributary of a larger river system (the so-called intra-basin endemic taxa). 3. Here, the discovery of three new, narrowly endemic freshwater mussel species from northern Myanmar is presented: Radiatula kachinensis sp. nov., Trapezidens mogaungensis sp. nov. (upper Ayeyarwady basin), and Lamellidens chindwinensis sp. nov. (upper Chindwin basin). All the new species are upland river specialists, which are under high human pressure as a result of habitat degradation, deforestation, oil palm expansion, river damming, and biological invasions. 4. A nearly complete lack of data on the life cycles and fish hosts should be considered the most striking gap in recent knowledge of tropical Asian freshwater mussels. Here, available data on 27 species belonging to the genera Radiatula, Trapezidens, and Lamellidens are revised. It is shown that certain fish hosts are known for two species only. 5. Further spread of the alien Chinese pond mussels (Sinanodonta woodiana species complex) in Indochina may be considered one of the significant threats to native freshwater mussel populations. Here, it is shown that the temperate invasive lineage of S. woodiana is established in at least three non-native populations in the Ayeyarwady and Salween basins. Moreover, the first arrival of the tropical invasive lineage of S. woodiana to Myanmar is announced, although it has been predicted previously. This lineage was found at two sites on the Shan Plateau (Ayeyarwady basin) close to the Chinese border.

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Section: Introductionmentioning

confidence: 99%

A riverine biodiversity hotspot in northern Myanmar supports three new and narrowly endemic freshwater mussel species

Bolotov

Konopleva

Chan³

et al. 2022

Aquatic Conservation

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“…On one hand we keep discovering new species in Yunnan, including freshwater gastropods (e.g. Köhler, Du & Yang, ; Du, Yang & Chen, ; Shu et al ., ), but on the other hand many already known species are endangered according to national and international Red Lists (Liu & Wu, ; IUCN, ).…”

Section: Introductionmentioning

confidence: 99%

Systematic revision of the freshwater snailMargarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa

et al. 2015

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The systematics of the viviparid freshwater snail genus Margarya endemic to the ancient lakes of Yunnan, China, is revised based on comparative analyses of morphological features, including shell, operculum, radula, and genital anatomy, and molecular phylogenetic analyses of partial sequences of the mitochondrial 16S rDNA (16S) and cytochrome c oxidase subunit I (COI) genes, as well as the nuclear Internal Transcribed Spacer 2 (ITS2). The taxonomic utility of key anatomical and morphological features in this group is evaluated. The genus Margarya as delimited previously is split into three genera in order to retain monophyletic taxa: (1) Margarya s.s., consisting of four species, i.e. the type species Margarya melanioides plus Margarya francheti, Margarya oxytropoides, and Margarya monodi; (2) the previously introduced subgenus Tchangmargarya is elevated to an independent genus containing two species, Tchangmargarya yangtsunghaiensis and the new species Tchangmargarya multilabiata sp. nov.; and (3) a new genus, Anularya gen. nov., is described, also containing two species, i.e. Anularya mansuyi and Anularya bicostata. Molecular phylogenies based on analyses of three gene fragments have identical topologies, supporting the monophyly of these genera. The sister group of Margarya s.s. is Cipangopaludina, whereas the sister group of Anularya is Sinotaia; Tchangmargarya is sister to a clade containing all the aforementioned groups. Features of the operculum and the right male tentacle (penis) are particularly informative on the generic level, whereas shell and radular characters are especially useful to differentiate species. The phylogenetic relationships recovered here are consistent with orogenic patterns of the Yunnan Mountains. Changes in the river system and water area of ancient lakes caused by tectonic activities probably play an important role in speciation and shaping the current pattern of species distribution in Yunnan.

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A new species ofGyraulus(Gastropoda: Planorbidae) from Ancient Lake Lugu, Yunnan-Guizhou Plateau, Southwest China

Shu

Köhler

et al. 2013

Molluscan Research

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A new species of Brotia from Yunnan, China (Caenogastropoda, Pachychilidae)

Cited by 10 publications

References 15 publications

A riverine biodiversity hotspot in northern Myanmar supports three new and narrowly endemic freshwater mussel species

A riverine biodiversity hotspot in northern Myanmar supports three new and narrowly endemic freshwater mussel species

Systematic revision of the freshwater snailMargarya Nevill, 1877 (Mollusca: Viviparidae) endemic to the ancient lakes of Yunnan, China, with description of new taxa

A new species ofGyraulus(Gastropoda: Planorbidae) from Ancient Lake Lugu, Yunnan-Guizhou Plateau, Southwest China

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