Pupilla alpicola
| Pupilla alpicola | |
|---|---|
 |
|
| shell of Pupilla alpicola | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): |
clade Heterobranchia
clade Euthyneura |
| Superfamily: | Pupilloidea |
| Family: | Pupillidae |
| Genus: | Pupilla |
| Species: | P. alpicola |
| Binomial name | |
|
Pupilla alpicola (Charpentier, 1837) |
|
| Synonyms | |
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Pupa (Sphyradium) alpicola Charpentier, 1837 |
|
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Orthurethra
Pupa (Sphyradium) alpicola Charpentier, 1837
Pupilla alpicola is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Pupillidae.
The shell of this species slightly larger than that of Pupilla muscorum, with slightly more prominent growth lines, around 6 not very convex whorls. The shell apex is flat (in contrast to Pupilla muscorum and Pupilla pratensis). The apertural lip is weak; the cervical callus is weak; there are usually no teeth in the aperture, occasionally a weak parietal tooth. Note the presence of a characteristic gutter-like depression in the external surface of the last whorl, at about 1/4 of the distance from its base. (In oblique light this is also visible in the aperture as a narrow, delicate ridge).
The height of the shell is 2.8–3.3 mm. The width of the shell is 1.75–1.8 mm.
The distribution of Pupilla alpicola includes the Alps and Carpathians.Pupilla alpicola has a scattered distribution; it is rare. Most of its habitats are close to alpine cattle pastures, and this means these habitats are now at risk, because traditional land management is decreasing.
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