Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva
Author
Breure, Abraham S. H.
Naturalis Biodiversity Center, P. O. Box 9517, 2300 RA Leiden, the Netherlands. & Royal Belgian Institute of Natural Sciences, Vautierstraat 29, 1000 Brussels, Belgium. E-mail: ashbreure @ gmail. com
ashbreure@gmail.com
text
Revue suisse de Zoologie
2016
2016-03-31
123
1
57
103
journal article
197352
10.5281/zenodo.46290
d6b2bbe3-8eb3-4b57-8922-fdbf8d712d34
0035-418
46290
Helix
(
Helicigona
)
blanchetiana
S.
Moricand, 1834
Figs 38-39
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).