MolluscaBase taxon details
Bicatillus Swainson, 1840 †
597443 (urn:lsid:marinespecies.org:taxname:597443)
accepted
Genus
Calyptraea deformis Lamarck, 1822 † accepted as Bicatillus deformis (Lamarck, 1822) † (type by subsequent designation)
Crucibulum (Bicatillus) Swainson, 1840 · unaccepted
- Species Bicatillus conulatum (Cossmann, 1910) †
- Species Bicatillus deformis (Lamarck, 1822) †
- Species Bicatillus extinctorium (Lamarck, 1822) accepted as Desmaulus extinctorium (Lamarck, 1822) (unaccepted > superseded combination)
marine, brackish, fresh, terrestrial
fossil only
masculine
Swainson, W. (1840). A treatise on malacology; or the natural classification of shells and shell-fish. Longman, London, viii + 419 pp., available online at http://www.biodiversitylibrary.org/item/33450 [details]
MolluscaBase eds. (2025). MolluscaBase. Bicatillus Swainson, 1840 †. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=597443 on 2025-09-10
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original description
Swainson, W. (1840). A treatise on malacology; or the natural classification of shells and shell-fish. Longman, London, viii + 419 pp., available online at http://www.biodiversitylibrary.org/item/33450 [details]
From editor or global species database
Editor's comment The type species of Bicatillus is not Calyptraea extinctorium as often cited, but the Miocene fossil Calyptraea deformis Lamarck, 1822, by subsequent designation of Herrmannsen (1847). Rehder (1943) recognized this situation and, for Bicatillus of authors, established the new genus Desmaulus. [details]
