A sinistral Helicopsis cf. instabilis (Rossmässler, 1838) from Romanian loess

Barna Páll-Gergely, e-mail: pall-gergely.barna@agrar.mta.hu

Plant Protection Institute, Centre for Agricultural Research, Herman Ottó Street 15, H-1022 Budapest, Hungary

Yunus Baykal, e-mail: yunus.baykal@geo.uu.se

Department of Earth Sciences, Uppsala University, Villavägen 16, 75236 Uppsala, Sweden

Thomas Stevens, e-mail: thomas.stevens@geo.uu.se

Department of Earth Sciences, Uppsala University, Villavägen 16, 75236 Uppsala, Sweden

Daniel Veres, e-mail: dsveres@gmail.com

Romanian Academy, Institute of Speleology, Clinicilor 5, 400006 Cluj-Napoca, Romania

Ulrich  Hambach, e-mail: ulrich.hambach@uni-bayreuth.de

BayCEER & Chair of Geomorphology, University of Bayreuth, 94450 Bayreuth, Germany
Abstract

Here we report a single sinistral juvenile shell of Helicopsis cf. instabilis (Rossmässler), which was found in the Urluia loess section in south-eastern Romania. This 860 cm long profile comprises the last ca. 45 ka. Approximately six hundred conspecific dextral shells were found at various depths of the same profile.

Key words
chirality; reverse-coiled shell; Geomitridae
References

Asami T., Cowie R. H., Ohbayashi K. 1998. Evolution of mirror images by sexually asymmetric mating behavior in hermaphroditic snails. American Naturalist 152: 225–236. https://doi.org/10.1086/286163
Bandoc G., Prăvălie R. 2015. Climatic water balance dynamics over the last five decades in Romania’s most arid region, Dobrogea. Journal of Geographical Sciences 25: 1307–1327. https://doi.org/10.1007/s11442-015-1236-1
Duda M., Haring E., Bieringer G., Eschner A., Mrkvicka A., Mason K. 2018. Taxonomic reassessment of Helicopsis austriaca Gittenberger, 1969 and its relationships to H. striata (O. F. Müller, 1774) and H. hungarica (Soos & H. Wagner, 1935) (Eupulmonata: Helicoidea). Journal of Molluscan Studies 84: 432–450. https://doi.org/10.1093/mollus/eyy044
Grossu A. V. 1983. Gastropoda Romaniae. 4. Ordo Stylommatophora. Suprafam.: Arionacea, Zonitacea, Ariophantacea şi Helicacea. Editura Litera, Bucureşti.
Obreht I., Hambach U., Veres D., Zeeden C., Bösken J., Stevens T., Marković S. B., Klasen N., Brill D., Burow C., Lehmkuhl F. 2017. Shift of large-scale atmospheric systems over Europe during late MIS 3 and implications for Modern Human dispersal. Scientific Reports 7: 1–10. https://doi.org/10.1038/s41598-017-06285-x
Sychev A. V., Snegin E. A. 2016. K problemye sistematiki roda Helicopsis (Gastropoda: Pulmonata: Hygromiidae) na territorii Vostochnoy Evropy. Ruthenica 26: 175–189.
Welter-Schultes F. 2012. European non-marine molluscs, a guide for species identification. Planet Poster Editions, Göttingen.

Folia Malacologica (2020) 28: 91-93
First published on-line: 2020-02-28 00:00:00
https://doi.org/10.12657/folmal.028.007
Full text (.PDF) BibTeX Mendeley Back to list