MolluscaBase name details
Alcadia (Megastoma) A. J. Wagner, 1907
1560380 (urn:lsid:marinespecies.org:taxname:1560380)
unaccepted > junior homonym (invalid; not Rafinesque, 1814)
Alcadia (Hjalmarsona) H. B. Baker, 1940 represented as Alcadia J. E. Gray, 1840
Subgenus
Helicina megastoma C. B. Adams, 1849 accepted as Alcadia megastoma (C. B. Adams, 1849) (type by absolute tautonymy)
Wagner, A. J. (1907-1911). Die Familie der Helicinidae. In: Küster, H. C. & Kobelt, W., Eds., Systematisches Conchylien-Cabinet von Martini und Chemnitz, Neue Folge. <em>Ersten Bandes, achtzehnte Abtheilung, zweiter Theil.</em> 1-72, pls 1-12 (1907), 73-160, pls 13-30 (1908), 161-248, pls 31-48 (1909), 249-328, pls 49-66 (1910), 329-391, pls 67-70 (1911). Nürnberg (Bauer & Raspe)., available online at https://biodiversitylibrary.org/page/52348872
page(s): 66 [details]
page(s): 66 [details]
MolluscaBase eds. (2025). MolluscaBase. Alcadia (Megastoma) A. J. Wagner, 1907. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1560380 on 2025-09-11
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original description
Wagner, A. J. (1907-1911). Die Familie der Helicinidae. In: Küster, H. C. & Kobelt, W., Eds., Systematisches Conchylien-Cabinet von Martini und Chemnitz, Neue Folge. <em>Ersten Bandes, achtzehnte Abtheilung, zweiter Theil.</em> 1-72, pls 1-12 (1907), 73-160, pls 13-30 (1908), 161-248, pls 31-48 (1909), 249-328, pls 49-66 (1910), 329-391, pls 67-70 (1911). Nürnberg (Bauer & Raspe)., available online at https://biodiversitylibrary.org/page/52348872
page(s): 66 [details]
page(s): 66 [details]