Helix (Helicigona) pileiformis S. Moricand, 1836

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 : 78

publication ID	https://doi.org/10.5281/zenodo.46290
DOI	https://doi.org/10.5281/zenodo.5745095
persistent identifier	https://treatment.plazi.org/id/03E387D6-FFB9-FFC5-DE4B-F43DE0630FD4
treatment provided by	Diego (2021-11-30 16:43:33, last updated 2024-11-25 23:24:44)
scientific name	Helix (Helicigona) pileiformis S. Moricand, 1836
status

Treatment

Figs 40-41 View Figs 26-28

Helix (Helicigona) pileiformis S. Moricand, 1836: 420 , pl. 2 fig. 2.

Type locality: [ Brazil, Bahia] “ Illheos ”.

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

Dimensions: Not given; figured specimen herein H 19.5, D 12.8, W 7.1.

Type material: MHNG-INVE-64567 , four syntypes (ex Blanchet, Moricand coll.).

Remarks: Moricand wrote: “Cette espèce, que je crois fort rare, puisque je n’en ai reçu qu’un seul individu”, suggesting that the original series was only one shell; Moricand did not mention the dimensions of his specimen. The present four specimens are accompanied by a label that confirms the material originating from Blanchet and locality Illheos. Therefore it is likely that either the original specimen was mixed with three specimens later received from Blanchet, or the holotype was lost and all specimens were subsequently sent by Blanchet. As this cannot be determined ex post, and the source and locality of the material are not disputed herein, these specimens are now considered as syntypes. The current systematic position follows Simone (2006).

Current systematic position: Bulimulidae , Pseudoxychona pileiformis (S. Moricand, 1834) .

References

Moricand S. 1834. Note sur quelques especes nouvelles de coquilles terrestres. Memoires de la Societe de physique et d'histoire naturelle de Geneve 6 (2): 537 - 543.

Moricand S. 1836. Memoire sur les coquilles terrestres et fluviatiles, envoyees de Bahia par M. J. Blanchet. Memoires de la Societe de physique et d'histoire naturelle de Geneve 7 (2): 415 - 446.

Simone L. R. L. 2006. Land and freshwater molluscs of Brazil. EGB / Fapesp, Sao Paulo, 390 pp.

Figures

Figs 26-28. Simpulopsidae. (26) Rhinus heterotricha (S. Moricand, 1836), syntype, MHNG-INVE-64602 (H = 53.4). (27) Rhinus pubescens (S. Moricand, 1846), syntype, MHNG-INVE-64606 (H = 15.6). (28) Rhinus velutinohispida (S. Moricand, 1836), syntype, MHNG-INVE-64611 (H = 33.0). Figs 29-30. Bothriembryontidae. (29) Euplacostylus koroensis (Garrett, 1872), probable paralectotype, MHNG-INVE-64767 (H = 47.7). (30) Bothriembryon costulatus (Lamarck, 1822), syntype, MHNG-INVE-51162 (H = 26.0). Figs 31-41. Bulimulidae. (31) Rabdotus dealbatus (Say, 1821), paratype of Bulimulus dealbatus jonesi Clench, 1937, MHNG- INVE-60529 (H =18.1).(32) Naesiotuscrepundia (d’Orbigny, 1835), paralectotype,MHNG-INVE-60497 (H = 22.8).(33) Naesiotus dentritis (Morelet, 1863), lectotype, MHNG-INVE-60432 (H = 20.8). (34) Naesiotus montivagus (d’Orbigny, 1835), paralectotype, MHNG-INVE-60505 (H = 19.4). (35) Naesiotus snodgrassi (Dall, 1900), paratype, MHNG- INVE-60518 (H = 17.3). (36) Naesiotus trichodes (d’Orbigny, 1835), paralectotype, MHNG-INVE-60513 (H = 18.5). (37) Naesiotus vestalis (Albers, 1854), paralectotype, MHNG-INVE-60515 (H = 16.4). (38-39) Oxychona pyramidella (Wagner in Spix, 1827), syntype of Helix (Helicigona) blanchetiana S. Moricand, 1834, MHNG-INVE-60674 (H = 15.6). (40-41) Pseudoxychona pileiformis (S. Moricand, 1836), syntype, MHNG-INVE-64567 (H = 19.5). ►