Abstract
Since the last comprehensive overview of the Czech and Slovak mollusc fauna, released in 2013, several records of species new for the countries or particular regions have appeared. In this paper, we summarize all such records and news collected in 2015–2019, including those affecting nomenclature and the national Check-lists made in 2013 and 2014. The rules for the selection of the records are: (i) the first record in Bohemia, Moravia or Slovakia, (ii) regionally important new records, (iii) records of species listed in NATURA 2000 and the national Red-lists as either critically endangered or endangered species, and (iv) currently spreading non-native species. New records are briefly commented and summarized for each species separately. Location data are published with all details in a supplementary table and are freely accessible.
Highlights
Starting with this contribution, we would like to continue the useful tradition of occasional publication of malacological news from the Czech and Slovak Republics, which was introduced in 1947 by the famous Czech malacologist Ložek (e.g. 1947, 1960)
The rules for the selection of the records are: (i) the first record in Bohemia, Moravia or Slovakia, (ii) regionally important new records, (iii) records of species listed in NATURA 2000 and the national Red-lists as either critically endangered or endangered species, and (iv) currently spreading non-native species
Stable and abundant populations are documented in the Kokořínsko – Máchův kraj Protected Landscape Area (PLA) in Bohemia (Beran 2006a), scattered and isolated populations are evidenced throughout the lowlands in the Czech and Slovak Republics (Horsák et al 2013)
Summary
We would like to continue the useful tradition of occasional publication of malacological news from the Czech and Slovak Republics, which was introduced in 1947 by the famous Czech malacologist Ložek (e.g. 1947, 1960). Stable and abundant populations are documented in the Kokořínsko – Máchův kraj Protected Landscape Area (PLA) in Bohemia (Beran 2006a), scattered and isolated populations are evidenced throughout the lowlands in the Czech and Slovak Republics (Horsák et al 2013). Deroceras juranum currently occurs in the Czech Republic in two separate populations in the Lužické hory Mts in northern Bohemia and, more abundantly, in the Šumava National Park and Protected Landscape Area in southern Bohemia (Vašát 2019).
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