''Norelona pyrenaica'' is a species of air-breathing

land snail A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial gastropod mollusks that have shells (those without shells are known as ...

, a terrestrial

pulmonate Pulmonata or pulmonates, is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includ ...

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusk in the family Elonidae. ''Norelona pyrenaica'' is the type species of the genus '' Norelona''.

Shell description

The shell is narrowly umbilicated, flattened above, thin, pellucid, olivaceous corneous. The shell has 4½

whorls A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral d ...

, that are rather flattened. The last whorl is not descending. The peristome is acute, reflected, white-lipped. The width of the shell is 17–21 mm. The height of the shell is 9–11 mm. Kerney M.P., Cameron R.A.D. & Jungbluth J.H. 1983. ''Die Landschnecken Nord- und Mitteleuropas.'' Hamburg/Berlin, 384 pp., page 299.

Anatomy

This species of snail makes and uses love darts.Gittenberger E. 1979. ''On Elona (Pulmonata, Eloniadae fam. nov.)'
Malacologia Volume 18, 1-2
Sixth European Malacological Congress, Amsterdam
139
145.
Image of reproductive system
)

Distribution

This species is endemic to the eastern Pyrenees, France.Vialatte A., Guiller A., Bellido A. & Madec L. 2008
''Phylogeography and historical demography of the Lusitanian snail Elona quimperiana reveal survival in unexpected separate glacial refugia''
BMC Evolutionary Biology 2008, 8:339 .
map of distributionmap 2
It is also known from Spain since 2007. Guillén G. & Corbella J. 2007
''Presència de Norelona pyrenaica (Draparnaud, 1805) (Gastropoda: Elonidae) al Massís del Montseny (el Vallès Oriental, Catalunya, Espanya)''
Spira 2007, 2(3): 189-190.

References

This article incorporates public domain text from reference Tryon G. W. 1888. '' Manual of Conchology, structural and systematic, with illustrations of the species. Second series: Pulmonata''. volume 4
page 94plate 23
figures 13-15. * Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16th, 2017

External links

{{DEFAULTSORT:Norelona Pyrenaica Elonidae Gastropods described in 1805