Structure of Hydrobiocenoses in Mineral and Thermal Springs of the Lake Baikal Region: A Review

Тахтеев, В. В.; Eropova, I. O.; Егорова, Ирина Николаевна; Kobanova, G. I.; Krivenko, Denis A.; Лиштва, А. В.; Ilin, G. D.; Pomazkova, G. I.; Okuneva, G. L.; Sitnikova, T. Ya.; Peretolchina, Tatiana; Khadeeva, E. R.; Lopatovskaya, O. G.

doi:10.1134/s1995425519020082

Cited by 4 publications

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“…This synonymy ratio (5:1) is not surprising, since roughly the same ratios were earlier reported in studies devoted to an integrative taxonomic revision of some groups of Lymnaeidae (Aksenova et al., 2017; Vinarski, Aksenova, Bespalaya, Bolotov, Schniebs, et al, 2016), in a study of Central European Hydrobiidae (Richling, Malkowsky, Kuhn, Niederhöfer, & Boeters, 2017) as well as of freshwater mussels of the family Unionidae (Bolotov et al., 2020). For instance, four nominal species of the hot spring snails of the “section” Thermoradix Kruglov & Starobogatov, 1989 were found to represent the “geothermal” races of Radix auricularia (L., 1758), a common Palearctic species (Aksenova et al., 2016, 2017; but see Takhteev et al., 2019 for an alternative opinion).…”

Section: Discussionmentioning

confidence: 99%

One Beringian genus less: A re‐assesment ofPacifimyxasKruglov & Starobogatov, 1985 (Mollusca: Gastropoda: Lymnaeidae) questions the current estimates of Beringian biodiversity

Vinarski

Aksenova

Bespalaya

et al. 2020

J. Zool. Syst. Evol. Res.

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The taxonomic position of three nominal species of lymnaeid snails placed by Kruglov & Starobogatov (1993) into the subgenus Lymnaea (Pacifimyxas) Kruglov & Starobogatov, 1985, has been reassessed based on a molecular genetic study of topotypic specimens and an examination of the type series and other materials available. It has been shown that the two species, Lymnaea (Pacifimyxas) magadanensis Kruglov & Starobogatov, 1985 and Lymnaea (Pacifimyxas) streletzkajae Kruglov & Starobogatov, 1985, are identical with the species Kamtschaticana kamtschatica (Middendorff, 1850) and must be treated as its junior synonyms. Hence, Pacifimyxas becomes a junior synonym of Kamtschaticana Kruglov & Starobogatov, 1984. The taxonomic identity of the third species of Pacifimyxas, Lymnaea (Pacifimyxas) perpolita, remains obscure, and this species is considered here as taxon inquirendum. Two other nominal species, Lymnaea aberrans (Westerlund, 1897) and Lymnaea middendorffi (W. Dybowski, 1904), have been synonymized with K. kamtschatica based on morphological and geographical evidence. The lectotype of Limnaea peregra var. middendorffi is designated. The actual level of species richness in the Beringian freshwater malacofauna may be 20-25% lower than it was determined on the basis of the traditional system. Some implications of this outcome for the biogeography of the Beringian freshwater fauna are discussed.

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