Helix (Helicigona) blanchetiana S. Moricand, 1834

Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 64

publication ID

https://doi.org/ 10.5281/zenodo.46290

DOI

https://doi.org/10.5281/zenodo.5745033

persistent identifier

https://treatment.plazi.org/id/03E387D6-FFAB-FFD7-DE46-F59BE1B8024A

treatment provided by

Diego

scientific name

Helix (Helicigona) blanchetiana S. Moricand, 1834
status

 

Helix (Helicigona) blanchetiana S. Moricand, 1834

Figs 38-39 View Figs 26-28

Helix (Helicigona) blanchetiana S. Moricand, 1834: 539 , pl. 1 fig. 3.

Helix (Helicigona) pyramidella Wagner in Spix. – S. Moricand, 1836: 418.

Type locality: “le Brésil, aux environs de Bahia ” .

Label: “ Bahia ”, in Moricand’s handwriting.

Dimensions: “Long. 15 mill. Larg. 15 mill.”; figured specimen herein H 15.6, D 17.4, W 6.4.

Type material: MHNG-INVE-60674, 63 syntypes (ex Blanchet, Moricand coll.); see remarks.

Remarks: Moricand did not state on how many specimens his description was based. In his second paper he placed this taxon in the synonymy of Helix pyramidella Wagner in Spix, 1827 ( Moricand, 1836: 418), and ‒ on the next page ‒ as one of the several varieties (evidently colour forms) of this species. There he mentioned “Ayant reçu, depuis la publication de mon premier Mémoire (…), un grand nombre de variétés de cette coquille, j’ai reconnu que mon H. Blanchetiana rentre dans l’espèce de Spix, dont elle n’est qu’une des variétés que je classe ainsi”. The current lot has 63 specimens altogether, which are thus a mixture of the original lot and shells received later and (partly) considered as varietal forms by Moricand (1836: 419). It is impossible to untangle this lot completely. One shell, which best approaches the original figure of Moricand, is figured herein. The current systematic position follows Simone (2006: 148).

Current systematic position: Bulimulidae , Oxychona pyramidella (Wagner in Spix, 1827).

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Stylommatophora

SuperFamily

Orthalicoidea

Family

Helicidae

Genus

Helix

SubGenus

Simpulopsis

Loc

Helix (Helicigona) blanchetiana S. Moricand, 1834

Breure, Abraham S. H. 2016
2016
Loc

Helix (Helicigona) pyramidella

Moricand S. 1836: 418
1836
Loc

Helix (Helicigona) blanchetiana S. Moricand, 1834: 539

Moricand S. 1834: 539
1834
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