A new species of Bythiospeum (Prosobranchia: Hydrobioidea: Moitessieriidae) from southern Poland
In the paper the authors describe Bythiospeum neglectissimum, a new species of Bythiospeum Bourguignat, 1882 found at a few stations in Southern Poland. It is characterised by its stout and Iow, conical and minute shell with the aperture closely adjoining and narrow, and by the slender, multifolded verge having a terminal dagger shaped filament and medially an apparent lobe. The description comprises the shell, operculum, mantle, head, ctenidium, osphradium, radula, stomach, verge, and female reproductive organs. The species surpasses far the known range of the genus Bythiospeum, and its bionomy is completely unclear. key WordS: shell, mantle/head pigmentation, verge, female reproductive organs Folia Malacologica 3/1989 was originally published as No. 1216 of Scientific Bulletins of University of Mining and Metallurgy, Cracow. This digitalised version was prepared by the Association of Polish Malacologists and first published on line on December 30th, 2016. http:/dx.doi.org/10.12657/folmal.003.006 Folia Malacol. 3: 95 101