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This paper brings a review of a malacological survey of the northern part of the Orlické Hory Protected Landscape Area, situated in northwestern part of Bohemia (Czech Republic) near boundary between the Czech Republic and Poland. Altogether, only 12 common species of aquatic molluscs (8 gastropods, 4 bivalves) were found. Galba truncatula, Radix peregra, Ancylus fluviatilis, Pisidium personatum, and P. casertanum belong to the most frequent molluscs found during this research. Occurrence of vulnerable or endangered molluscs as well as non-native molluscs was not documented in this area.