A twist of nature: a left-handed Bythinella schmidti (Küster, 1852) (Caenogastropoda: Bythinellidae)


  • Simona Prevorčnik University of Ljubljana, Biotechnical Faculty, Department of Biology, Jamnikarjeva 101, SI-1000 Ljubljana
  • Andrzej Falniowski Department of Malacology, Institute of Zoology, Jagiellonian University, Gronostajowa 9, PL-30-387, Kraków




Bythinella, sinistrality, shell abnormalities, spring, Slovenia


As most extant snails, Bythinella schmidti is characterised by dextral (right-handed) coiling of the shell. Nevertheless, a small sinistral (left-handed) individual from the spring on a mountain pasture was sampled, together with its larger dextral conspecifics. In our report on this first case of sinistrality within the superfamily Truncatelloidea, we discuss its shell abnormalities and provide a review on chirality in snails.


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Short Communication

How to Cite

Prevorčnik, S., & Falniowski, A. (2018). A twist of nature: a left-handed Bythinella schmidti (Küster, 1852) (Caenogastropoda: Bythinellidae). Natura Sloveniae, 20(2), 25-31. https://doi.org/10.14720/ns.20.2.25-31

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