MolluscaBase name details
original description
Beck, H. H. (1838). Species novarum in indice molluscorum praesentis aevi musei Principis Christiani Frederici ab autore propositarum characteres breves. Hafniae (= København): 1-8. [June]., available online at https://biodiversitylibrary.org/page/32058146
page(s): 3 [details]
original description (unavailable nomenclaturally)
Beck, H. (1837-1838). <i>Index molluscorum praesentis aevi musei principis augustissimi Christiani Frederici</i>. 124 pp. Hafniae [Copenhagen]. Pp. 1-100 [1837]; 101-124 [1838]; Appendix: 1-8 [June 1837]. , available online at https://biodiversitylibrary.org/page/32058074
page(s): 2; note: The name Microcystis is generally dated from Beck, 1837, Index molluscorum... 1: 2, but in that work there is no description and the included species are all nomina nuda except Helicolimax pellicula F... The name Microcystis is generally dated from Beck, 1837, Index molluscorum... 1: 2, but in that work there is no description and the included species are all nomina nuda except Helicolimax pellicula Férussac, 1821, which is included only with doubt. The history of the name and type species designation are reviewed bt Iredale, 1913, Proceedings of the Malacological Society of London, 10: 373.
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