Ecologica Montenegrina 21: 86-89 (2019) This journal is available online at: www.biotaxa.org/em https://zoobank.org/urn:lsid:zoobank.org:pub:FA7B67CC-2822-4714-8E9B-5F03E5AD5951 A New hydrobiid (Mollusca, Gastropoda, Hydrobiidae) genus of Bosnia and Hercegovina JOZEF GREGO1 & PETER GLÖER2 1 Horná Mičiná, SK-97401 Banská Bystrica, Slovakia, email:
[email protected] 2 Schulstr. 3, D-25491 Hetlingen, Germany, email:
[email protected] Received 18 April 2019 │ Accepted by V. Pešić: 9 May 2019 │ Published online 14 May 2019. Abstract A new genus and species of hydorbiid gastropod is described from a small karst spring at the right bank of Trebišnjica River in Gorica near Trebinje in Hercegovina. The taxon is clearly distinguished by the unique morphology of its male copulatory organ. Key words: Mollusca, new genus, new species, taxonomy, springs. Introduction Most of the hydrobiid genera and species can be reliably distinguished by the male copulatory organs (penis) morphology alone (Radoman 1983, Szarowska 2006, Glöer et al. 2010, Glöer and Pešić 2014, Georgiev and Glöer 2018). The senior author found a species in Hercegovina with a so far unknown penis shape. Due to unique penis shape the new species is described herein as a new genus. Materials and methods The studied material was obtained by sieving of the sandy sediments of Studenac and Vruljak 1 karstic springs in Gorica near Trebinje (Fig. 1) using microhabitat preference and sampling method according to Grego et al. (2017). The gastropods were sieved and sorted out from the sandy sediments, and fixed in 70–80 % ethanol. The live specimens were transfered to 80% analytical ethanol.