Abstract
Seven species of Vertigo were found during a malacological survey of the neighbourhood of S1polno (central part of Pomeranian Lakeland, NW Poland); three of them are rare in Poland: V. moulinsiana (Dupuy, 1849), V. ronnebyensis (Westerlund, 1871) and V. angustior Jeffreys, 1830. The UTM grid coordinates of the site are XV 56.
Highlights
The malacofauna of the central part of Pomeranian Lakeland, in the region of village S1polno (NW Poland) is being investigated at present
Ten species were found in the studied area: Vertigo
The new site is located on a shore of a small lake near the village Korne, district Konarzyny (Fig. 2 – V.m.)
Summary
The malacofauna of the central part of Pomeranian Lakeland, in the region of village S1polno (NW Poland) is being investigated at present. The new site is located on a shore of a small lake near the village Korne, district Konarzyny (Fig. 2 – V.m.). Measurements of 275 shells from the new locality gave the following results: shell height 2.05–2.58 mm (mean 2.29 mm, SD 0.09 mm), shell width 1.40–1.63 mm (mean 1.51 mm, SD 0.04 mm), number of whorls 4.1–4.8 (mean 4.39, SD 0.14), height/width ratio 1.40–1.70 (Figs 4–7). The correlation between the shell parameters was: height-width r=0.59, height-number of whorls r=0.76, width-number of whorls r=0.42.
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