MolluscaBase - Helix (Pileolus) R. P. Lesson, 1831

MolluscaBase name details

Helix (Pileolus) R. P. Lesson, 1831

AphiaID

999192 (urn:lsid:marinespecies.org:taxname:999192)

Classification

Status

unaccepted (Invalid: junior homonym of Pileolus G.B. Sowerby I, 1823)

Accepted name

Megalacron I. Rensch, 1934

Rank

Subgenus

Type taxon

Helix (Pileolus) tuffetii R. P. Lesson, 1831 accepted as Megalacron coniformis (A. Férussac, 1821) (type by subsequent designation)

Parent

Helix Linnaeus, 1758

Original name

Helix (Pileolus) R. P. Lesson, 1831

Direct children (2)

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Species Helix (Pileolus) tuffetii R. P. Lesson, 1831 accepted as Megalacron coniformis (A. Férussac, 1821) (unaccepted > junior subjective synonym)
Species Helix (Pileolus) gabertii R. P. Lesson, 1831 (uncertain > unassessed)

Environment

~~marine~~, ~~brackish~~, ~~fresh~~, terrestrial

Original description

Lesson, R. P. (1830-1831). Chapitre XI. Mollusques, Annélides et Vers; par R.-P. Lesson. pp. 239-456 [15 Nov 1831], plates 1-16 [Mollusques 1-3, 09 Jan 1830; Mollusques 4-6, 01 May 1830; Mollusques 7, 26 May 1830; Mollusques 8-9, 25 Nov 1830; Mollusques 12, 07 Mar 1831; Mollusques 10, 25 Jul 1831; Mollusques 11, 13 Oct 1831; Mollusques 14, 16, 15 Nov 1831; Mollusques 13, 15, 22 Dec 1831]. In: Lesson R.P. 1830-1831. Voyage autour du monde, exécuté par ordre du Roi, sur la corvette de Sa Majesté, La Coquille, pendant les années 1822, 1823, 1824 et 1825. Zoologie, par M. Lesson. Tome Second. 1re Partie. Paris, Arthus Bertrand, Libraire-Editeur, Imprimerie de Firmin Didot.<br>link to<a href="https://www.biodiversitylibrary.org/page/38663729" target="_blank">Text</a> link to <a href="https://www.biodiversitylibrary.org/page/38768370" target="_blank">Plates</a>. , available online at https://www.biodiversitylibrary.org/page/38663729
page(s): 313 [details]

Taxonomic citation

MolluscaBase eds. (2025). MolluscaBase. Helix (Pileolus) R. P. Lesson, 1831. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=999192 on 2025-09-10

Taxonomic edit history

Date

action

2017-06-19 13:01:19Z

created

Bank, Ruud

2018-10-06 22:28:15Z

changed

Köhler, Frank

2023-04-09 14:44:03Z

changed

Bouchet, Philippe

Licensing

The webpage text is licensed under a Creative Commons Attribution 4.0 License

[taxonomic tree]

Sources (2)

original description Lesson, R. P. (1830-1831). Chapitre XI. Mollusques, Annélides et Vers; par R.-P. Lesson. pp. 239-456 [15 Nov 1831], plates 1-16 [Mollusques 1-3, 09 Jan 1830; Mollusques 4-6, 01 May 1830; Mollusques 7, 26 May 1830; Mollusques 8-9, 25 Nov 1830; Mollusques 12, 07 Mar 1831; Mollusques 10, 25 Jul 1831; Mollusques 11, 13 Oct 1831; Mollusques 14, 16, 15 Nov 1831; Mollusques 13, 15, 22 Dec 1831]. In: Lesson R.P. 1830-1831. Voyage autour du monde, exécuté par ordre du Roi, sur la corvette de Sa Majesté, La Coquille, pendant les années 1822, 1823, 1824 et 1825. Zoologie, par M. Lesson. Tome Second. 1re Partie. Paris, Arthus Bertrand, Libraire-Editeur, Imprimerie de Firmin Didot.<br>link to<a href="https://www.biodiversitylibrary.org/page/38663729" target="_blank">Text</a> link to <a href="https://www.biodiversitylibrary.org/page/38768370" target="_blank">Plates</a>. , available online at https://www.biodiversitylibrary.org/page/38663729
page(s): 313 [details]

basis of record Bank, R. A. (2017). Classification of the Recent terrestrial Gastropoda of the World. Last update: July 16th, 2017. [details]