| Summary: | FIGURES 1–7. Radix auricularia (Linnaeus, 1758) from Russian Far East. Figs. 1-4. Shell and proximal part of the female genitalia. Scale bar 2 mm. Fig. 1. Holotype of Lymnaea (R.) hadutkae Kruglov & Starobogatov, 1989 syn. n. (shell photo: M.V. Vinarski; genitalia redrawn from the protologue, Fig. 2.7). Fig. 2. Holotype of L. (R.) thermokamtschatica Kruglov & Starobogatov, 1989 syn. n. (shell photo: M.V. Vinarski; genitalia redrawn from the protologue, Fig. 2.9). Fig. 3. Newly collected specimen from the Khodutka geothermal area, Kamchatka (photos: O.V. Aksenova). Fig. 4. Specimen from Malkinskie hot springs, Kamchatka (photos: O.V. Aksenova). Fig. 5. Bayesian phylogram of haplotypes based on mitochondrial COI gene dataset (Appendixes 1 & 2). The scale bar indicates the branch length. Asterisks: Posterior probabilities ≥0.95; other significant node support values are mentioned in the figure. Haplotypes exclusively from NCBI's Genbank are marked with circumflex accents (˄). The well-supported clade with two haplotypes from the Khodutka geothermal area is highlighted in blue. Fig. 6. General view of the Khodutka warm lake. Fig. 7. Map of observed localities on the Russian Far East. The red circles represent species records. Locality codes are given in Appendix 1. The digital elevation model and other layers of the map were added from Esri Data & Maps 10 dataset (Map: M.Yu. Gofarov). Published as part of Bolotov, Ivan, Bespalaya, Yulia, Aksenova, Olga, Aksenov, Andrey, Bolotov, Nikita, Gofarov, Mikhail, Kondakov, Alexander, Paltser, Inga & Vikhrev, Ilya, 2014, A taxonomic revision of two local endemic Radix spp. (Gastropoda: Lymnaeidae) from Khodutka geothermal area, Kamchatka, Russian Far East, pp. 585-593 in Zootaxa 3869 (5) on page 587, DOI:10.11646/zootaxa.3869.5.9, http://zenodo.org/record/225341
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