Galba truncatula (O.F. Müller, 1774)

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 : 9

Galba truncatula (O.F. Müller, 1774)

( Fig. 3 , D)

Distribution: One of the most widespread lymnaeid species in the region – we found its populations in six localities ( Table 1). In Ukraine the species is registered in all regions including the Transcarpathian ( Stadnichenko 2004; Stadnichenko & Gyrin 2011; Anistratenko et al. 2017). General distribution covers Eurasia, Northern America, Southern America, Northern and Eastern Africa.

Remarks: In the Transcarpathian area this species inhabits hard substrates in shoreline zone of rivers, former riverbeds, streams, ponds and even puddles up to 500 m a.s.l., see Table 1. Sometimes the snails occur here in amphibiotic conditions ( Anistratenko et al. 2017).

Taxonomic remarks: According to the former USSR authors ( Kruglov & Starobogatov 1993a; Stadnichenko 2004), the species Galba truncatula s. str. should be split into a series of „minor‟ species that can be distinguished by minute conchological features. Most of these species remain not studied genetically. We found two of them in the studied area and consider them here as morphospecies (see below).

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.