Galba subangulata (Roffiaen, 1868)

Anistratenko, V. V., Furyk, Yu. I., Anistratenko, O. Yu. & Degtyarenko, E. V., 2019, A Review Of Species Diversity, Distribution And Ecology Of Freshwater Gastropod Molluscs Inhabiting The Ukrainian Transcarpathian, Vestnik Zoologii 53 (5), pp. 349-374 : 364

Galba subangulata (Roffiaen, 1868)

Distribution. The species found at 3 localities: 22, 31 and 40 ( fig. 1 , table 1 ); it has been recently recorded from Transcarpathian Region for the first time ( Anistratenko et al., 2018) though some reports of G. ventricosa (Moquin-Tandon, 1855) might be referred to G. subangulata ( Stadnichenko, Gyrin, 2011 a) . In Ukraine the species is distributed in the Steppe and Forest-Steppe zones (Anistratenko, Сhernogorenko, 1989; Stadnichenko, 2004).

Remarks. In the studied area G. subangulata inhabits hard substrates in shoreline zone of moderately warm (T = 13.4–24.0 °С) small rivers or swamped streams in the altitude range 145–850 m a. s. l. (table 2) occasionally together with G. oblonga (see below). This (morpho)species differs from G. truncatula by ovate-conical shell with a shorter spire and visibly inflated body whorl than in latter species ( Anistratenko et al., 2018: fig. 3 , E).

Figures

Fig. 1. Map showing the localities of samples studied. Details for each sampling point are given in table 1.

Fig. 3. Shells of Transcarpathian gastropod molluscs: 1 — Viviparus viviparus (locality 12); 2 — Contectiana contecta (locality 15); 3 — Viviparus sphaeridius (locality 12); 4 — Bithynia tentaculata (locality 15); 5 — Valvata (Cincinna) ambigua (locality 15); 6 — Bithynia troschelii (locality 13); 7 — Valvata (Cincinna) piscinalis (locality 22); 8 — Lithoglyphus naticoides (locality 9); 9–11 — Planorbis planorbis (locality 15); 12, 13 — Planorbarius corneus (locality 15). Scale bars are given for 1–3, 4–8, and 9–13 correspondingly.