Diversity of Terrestrial Gastropods (Mollusca, Gastropoda) in the Mariovo Region, Republic of North Macedonia

The Mariovo Region is an area of rich biodiversity in the southern part of the Republic of North Macedonia. In connection with expected hydro -power projects, baseline information on terrestrial was accumulated. Several collecting trips 2010-2022 in the Mariovo Region provided data on the distribution of 46 terrestrial gastropod species -group taxa. The data collected during the expeditions provides the first information on terrestrial gastropods in this region of North Macedonia. The recorded species include the North -Macedonian endemics Carinigera drenovoensis, Euxinella radikae, Monacha dofleini and Vitrea cf. mikuskai and the Balkan endemics Candidula rhabdotoides, Chondrula macedonica, Helix philibinensis and Truncatellina rothi. In addition, Vertigo angustior, a species of high conservation importance according to the IUCN Red List, has also been recorded.