Radix (Radix) cf. parapsilia Vinarski et Glöer, 2009

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 : 10

Radix (Radix) cf. parapsilia Vinarski et Glöer, 2009

( Fig. 3 , J, K)

Distribution: The species is found at a single locality 10 ( Table 1) and is formally new species for the regional malacofauna since is never mentioned in Transcarpathian. However some records of L. peregra (O.F. Müller, 1774) in there as well as in adjacent Ivano-Frankovsk region ( Stadnichenko 2004) might be referred to R. parapsilia . Distribution of the species in Ukraine needs to be clarified on the basis of more extensive field samplings. General distribution – Northern Eurasia.

Remarks: In the Transcarpathian the species is found in shallow zone of canal.

Taxonomic remarks: In the Russian literature, this species had been known as Lymnaea (Radix) psilia (Bourguignat, 1862) (e.g. Kruglov & Starobogatov 1993a; Stadnichenko 2004; Kruglov 2005). Having studied the syntypes of the latter, Vinarski & Glöer (2009) revealed they represent nothing but juvenile individuals of L. stagnalis , and a new species name was introduced to replace L. psilia sensu Kruglov, 2005 non Bourguignat, 1862. The specimen collected in Western Ukraine differs from the typical R. auricularia by its higher spire and less inflated body whorl. Possibly, it is conspecific with R. parapsilia , whose type locality is situated in the southwest Siberia ( Vinarski & Glöer 2009). However, further study is needed to prove the presence of R. parapsilia in the Transcarpathian region.

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.