Radix (Peregriana) ampullаcea (Rossmässler, 1835) (Rossmassler, 1835)

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

Radix (Peregriana) ampullаcea (Rossmässler, 1835)

( Fig. 3 , L)

Distribution: The species is only found in two localities (3 and 9, see Table 1); it was also recently mentioned in Transcarpathian by Stadnichenko (2004). In Ukraine the species inhabits all regions ( Stadnichenko 2004). General distribution – Europe and Siberia.

Remarks: The Transcarpathian populations of R. ampullacea are characterized by low density; this species found here only in rivers at depths up to 0.5 m.

Taxonomic remarks: Stadnichenko (2004) and Kruglov (2005) define this species as a close relative to R. balthica . The species is characterized by almost spheroid shell and very low spire. The body whorl is strongly inflated (much more inflated as compared with R. balthica ). The Western European malacologists ( Glöer 2002; Schniebs et al. 2011; Welter-Schultes 2012) do not recognize R. ampullacea as a valid species. Its identity needs to be resolved.

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.