ISSN 2755-3531
Peter Tattersfield, Juan Sebastián Torres Alba & Michal Horsák
Abstract. New records for Vertigo angustior and four additional species are reported from a site at Sierras de Cazorla, Segura y las Villas in Jaén, Andalucía, Spain. This is the most southerly record for V. angustior in Spain and probably Europe. The wider distribution and habitat associations of V. angustior in Spain and elsewhere in Europe is discussed. The presence of Euconulus alderi in the Iberian Peninsula is confirmed, with records in León, Asturias, and Andalucía; its identification, status and distribution are discussed.
Se dan a conocer nuevos registros de Vertigo angustior, junto con otras cuatro especies de una localidad en las Sierras de Cazorla, Segura y Las Villas en Jaén, Andalucía, España. Siendo éste el registro más meridional de V. angustior para España y probablemente para Europa. Se discute la amplitud de su distribución así como las asociaciones de hábitat de V. angustior en España y otras partes de Europa. Se confirma la presencia de Euconulus alderi en la Península Ibérica, con registros en León, Asturias y Andalucía; se discute su identificación, estatus y distribución.
Key words. Jaén; Vertiginidae; Euconulidae; Parque Natural; Annex II; Sierras de Cazorla, Segura y las Villas
Publication date. 1 January 2025
DOI. https://doi.org/10.61733/jconch/4533
Megalobulimus arapotiensis Morretes, 1952 is a junior synonym of M. elongatus (Bequaert, 1948)
Fernanda S. Silva
Abstract. The status of the Megalobulimus arapotiensis is reassessed. A conchological comparison of this species and M. elongatus reveals no significant differences. The morphology of M. arapotiensis falls within the range of variability known in M. elongatus. These similarities suggest that M. arapotiensis should be treated as a junior synonym of M. elongatus. All known occurrences of both taxa are mapped.
Key words. New synonym, Gastropoda, Strophocheilidae, Megalobuliminae
Publication date. 5 January 2025
DOI. https://doi.org/10.61733/jconch/4534
Vanja Marković, Vukašin Gojšina, Jelena Tomović, Boris Novaković, Mihailo Vujić, Marija Ilić, Ivana Živić, Milenka Božanić & Anđelina Tatović
Abstract. Populations of Theodoxus transversalis, striped nerite, have declined in recent decades, arguably due to negative anthropogenic impacts on their habitats. The species is classified as endangered by the International Union for Conservation of Nature, and there are generally few reports of its recent occurrence. This is especially true for the Western Balkans and Serbia, where data on the distribution of T. transversalis are more than a decade old. Herein, we present the latest data based on an extensive field study of this species conducted in 2023 and 2024. The Velika Morava-Južna Morava-Nišava catchment and ecoregion (ER) 5 were confirmed as the most important refugium for this rare snail in the investigated region. Of particular interest are the findings of an abundant population from the Drina River (where the species has not been reported for 15 years), from the lower Serbian section of the Danube (reports from the Danube are 30 years old), and the discovery of a new population from the Zapadna Morava River 100 km upstream from the nearest known population. Our results show considerable progress in the restoration of the former range of T. transversalis in the Western Balkans, although stable populations still appear to be localized. There is also a possibility that this species is spreading into new areas, which is a possibility for the Zapadna Morava River catchment. While it appears that T. transversalis is more resilient to negative anthropogenic impacts than previously described in the available literature, a more detailed ecological and genetic study should shed more light on the presence and prospects of the species in the region.
Key words. Striped nerite, geographic distribution, new findings, ecoregions, Serbia
Publication date. 26 January 2025
DOI. https://doi.org/10.61733/jconch/4535