Molluscs (Gastropoda and Bivalvia) of the upper Neretva River




Mollusca, Bosnia-Herzegovina, Neretva River, spring snails, Truncatellidoidea, Balkan region


During a survey taking place from 29.6.2022–2.7.2022 in Bosnia and Herzegovina in the river-floodplain system of the upper Neretva River around Ulog, 51 species of molluscs were found at 12 sampling sites. Besides manual sampling in the water bodies, the main sampling technique consisted of sieving of river deposits, to maximise the coverage of species diversity. The majority of the species were terrestrial gastropods (45 out of 51), most of them common species of forests and moist areas, but also of grassland. In the Neretva River itself and in adjacent waterbodies, six species of freshwater molluscs were found. Among them, at least three species of spring snails of the taxonomically challenging genera Belgrandiella, Bythinella, and Paladilhiopsis were found, the latter one only in river deposits. Future research should focus on truncatelloidean snails in the groundwater system of the upper course of the Neretva River. Furthermore, a broader investigation of the mollusc fauna of Bosnia and Herzegovina would help to clarify taxonomically unresolved questions of species of the Balkan region and possibly reveal species new for science.


Bank RA, Neubert E. 2017. Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16th, 2017; [accessed 2022 Mar 2].

Beran L. 2021. Freshwater molluscs of the Zrmanja and Krupa Rivers (Croatia) – the role of these rivers as a refuge of threatened and endemic species. Folia Malacologica. 29: 91-110. DOI:

Čiliak M, Šteffek J. 2011. Vyhodnotie malakofauny z náplavov Neresnice (stredné Slovensko) [Interpretation of molluscan fauna from the Neresnica River flood deposits [Central Slovakia]. Malacologica Bohemoslovaca. 10: 73-78. DOI:

Dedov I, Fehér Z, Georgiev D, Nakev S. 2021. Classic localities of terrestrial Mollusca from the Western Balkans. Version 1.3. Macedonian Ecological Society. Occurrence dataset; [accessed via on 22.3.2023].

Duda M., Haring E., Sattmann H. 2018. The mollusc fauna of the Vjosa river and its floodplains at Poçemi, South Albania. Acta ZooBot Austria. 155: 191–196.

Duda M, Schubert H, Schindelar J, Haring E. 2022. Four new records of invasive gastropods in Vienna. Arianta. 9: 37-40.

Glöer P. 2019. The freshwater gastropods of the West-Palaearctis. Volume 1. Fresh- and brackish waters except spring and subterranean snails. Identification key, anatomy, ecology, distribution. Hetlingen: Biodiversity Research Lab.

Glöer P. 2022a. The freshwater gastropods of the West-Palaearctis. Volume 2. Moitessieriidae, Bythinellidae, Stenothyridae. Identification key, anatomy, ecology, distribution. Hetlingen: Biodiversity Research Lab.

Glöer P. 2022b. The freshwater gastropods of the West-Palaearctis. Volume 3. Hydrobiidae. Identification key, anatomy, ecology, distribution. DOI:

Glöer P, Grego J. 2015. New subterranean freshwater Molluscs from Bosnia & Hercegovina (Mollusca: Hydrobiidae). Ecologia Montenegrina. 2: 307-314. DOI:

Grego J, Glöer P. 2019. A New hydrobiid (Mollusca, Gastropoda, Hydrobiidae) genus of Bosnia and Hercegovina. Ecologica Montenegrina 21: 86-89. DOI:

Grego J. 2020. Revision of the stygobiont gastropod genera Plagigeyeria (Tomlin, 1930) and Travunijana (Grego and Glöer, 2019) (Mollusca; Gastropoda; Moitessieriidae and Hydrobiidae) in Hercegovina and adjacent regions. European Journal of Taxonomy. 691: 1-56. DOI:

Hofman S, Rysiewska A, Ostrowski A, Grego J, Sket B, Prevorčnik S, Zagmajster M, Falniowski A. 2018. Phylogenetic relationships of the Balkan Moitessieriidae (Caenogastropoda: Truncatelloidea). Zootaxa. 4486(3): 311-339. DOI:

Horsák M. 2003. How to sample mollusc communities in in mires easily. Jak jednodušeji vzorkovat prameništní malakocenózy. Malacologica Bohemoslovaca. 2: 11-14. DOI:

Jaeckel SH, Klemm W, Meise W 1958. Die Land- und Süßwassermolluskender der nördlichen Balkanhalbinsel. Abhandlungen und Berichte des staatlichen Museums für Tierkunde Dresden. 23: 141-264.

Karaman B. 2006. Former investigations of snails (Mollusca, Gastropoda) in Bosnia and Herzegovina. Natura Montenegrina. 5: 55-66.

Knook VG, Weiss S, Singer G, editors. 2022. Science Week 2022, Neretva River, Bosnia and Herzegovina. Preliminary Report for River Watch and EuroNatur. p. 42.

Mulaomerović J, Glöer P. 2022. Five new gastropod species from Bosnia and Hezegovina (Gastropoda, Hydrobiidae and Bythinellidae). Nachrichtenblatt der Ersten Vorarlberger Malakologischen Gesellschaft. 29: 73-78.

Radoman P. 1983. Hydrobioidea a superfamily of prosobranchia (Gastropoda). I. Sistematics. Srpska akademija nauka i umetnosti, Posebna izdanja. 57: 1-256.

Richling I, Malkowsky Y, Kuhn J, Niederhöfer HJ, Boeters HD. 2017. A vanishing hotspot – the impact of molecular insights on the diversity of central European Bythiospeum (Bourguignat, 1882) (Mollusca: Gastropoda: Truncatelloidea). Organisms Diversity and Evolution. 17: 67-85. DOI:

Schubert HC, Duda M, Eschner A, Weigand E, Kruckenhauser L. 2023. DNA barcoding as a tool to monitor the diversity of endangered spring snails in an Austrian National Park. Biodiversity Data Journal. 11: 91496. DOI:

Welter-Schultes F. 2012. European Non-marine Molluscs – Bestimmungsbuch für europäische Land- und Süsswassermollusken – A guide for species identification. Planet PosterEditions. p. 760.




How to Cite

Duda, M., & Haring, E. (2023). Molluscs (Gastropoda and Bivalvia) of the upper Neretva River. Natura Sloveniae, 25(3), 15–27.

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