On the origin and diversification of the stygobiotic freshwater snail genus Hauffenia (Caenogastropoda: Hydrobiidae) with special focus on the northern species and the description of two new species

Haase, Martin, Grego, Jozef, Erőss, Zoltán Péter, Farkas, Roland, Fehér, Zoltán (2021): On the origin and diversification of the stygobiotic freshwater snail genus Hauffenia (Caenogastropoda: Hydrobiidae) with special focus on the northern species and the description of two new species. European Journal of Taxonomy 775: 143-184, DOI: https://doi.org/10.5852/ejt.2021.775.155