Radix (Peregriana) lagotis (Schrank, 1803)

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 : 366

Radix (Peregriana) lagotis (Schrank, 1803) ( fig. 4 , 2 )

Distribution. According to our data, R. lagotis is widespread and quite common species of pond snails in the Transcarpathia. It was formally listed in the regional fauna long time ago ( Zdun, 1960) though it still unclear whether or not a determination of snails was correct. Currently populations of the species are found in 6 localities: 7, 8, 27, 29, 48 and 55 ( fig. 1 , table 1 ). In Ukraine R. lagotis is registered in all regions (Anistratenko, Сhernogorenko, 1989; Stadnichenko, 2004). General distribution — Northern and Central Palearctic ( Vinarski, Kantor, 2016).

Remarks. In the Transcarpathia R. lagotis occurs in the similar biotopes as R. peregra living in slowly running rivers, temporary or semi-permanent waterbodies in the altitude range from 110 up to 540 m a. s. l. ( table 1 , 2). In shell shape R. lagotis differs from R. peregra by its lower spire and more wide body whorl.

Figures

Fig. 4.Shells of Transcarpathian gastropod molluscs: 1 — Radix peregra (locality 55); 2 — R. lagotis (locality 48); 3–5 — Physa acuta (3, 4—from locality 6; 5 — locality 15); 6–8 — Anisus septemgyratus (locality 58); 9–11 — Anisus spirorbis (locality 16); 12–14 — Gyraulus albus (locality 16); 15–17 — Segmentina nitida (locality 14); 18–20 — S. montgazoniana (locality 7); 21–23 — Ancylus fluviatilis (locality 58).

Fig. 2. Selected types of ecotopes in the region of materials sampling, Transcarpathia: 1— Chorna Voda (Mertse) River, near the Gat village (locality 15); 2 — artificial pool in the floodplain of Latorytsia River, near Chop town (locality 8); 3 — stream near the Bukove village (locality 20); 4 — creek in the territory of Carpathian Biosphere Reserve Headquarters (locality 5).

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