Radix (Peregriana) balthica (Linnaeus, 1758)

Anistratenko, Vitaliy V., Vinarski, Maxim V., Anistratenko, Olga Yu., Furyk, Yurii I. & Degtyarenko, Elena V., 2018, New data on pond snails (Mollusca: Gastropoda: Lymnaeidae) inhabiting the Ukrainian Transcarpathian: diversity, distribution and ecology, Ecologica Montenegrina 18, pp. 1-14 : 11-12

Radix (Peregriana) balthica (Linnaeus, 1758)

( Fig. 3 , M)

Distribution: The species is new for the Transcarpathian region, found in four localities ( Table 1) one of which (19) situated in mountainous area, 700 m a.s.l. In Ukraine the species is registered in different regions, excluding Steppe zone and Carpathians ( Stadnichenko 2004). General distribution – Palaearctic.

Remarks: R. balthica is, probably, the most widespread and common species of the subgenus Peregriana in the fauna of Europe. Some populations in the Transcarpathian are characterized by high density; the species found here only in rivers. Since R. balthica is recorded also in Iceland ( Bolotov et al. 2017) this could means it prefers cold and running water conditions.

Taxonomic remarks: Identity of R. balthica is based on the neotype (designated and illustrated by Kruglov & Starobogatov, 1983) as well as on numerous descriptions ( Glöer 2002; Stadnichenko 2004; Kruglov 2005) and molecular taxonomic studies ( Schniebs et al. 2011; Bolotov et al. 2017).

Figures

Figure 3. Shells of pond snails found. A – Lymnaea stagnalis from locality 16; B – L. fragilis, locality 7; C – Stagnicola corvus, locality 8; D – Galba truncatula, locality 21; E – G. subangulata, locality 16; F – G. oblonga, locality 4; G, H – Ladislavella terebra, loc. 17; I – Radix auricularia, locality 3; J, K – R. parapsilia, locality 10; L – R. ampullаcea, locality 3; M – R. balthica, locality 2; N – R. intermedia, locality 4; O – R. ampla, locality 15; P – R. tumida, locality 15. Scale bar = 10 mm for A–C and 5 mm for D–P.