Pupilla pratensis
| Pupilla pratensis | |
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| shell of Pupilla pratensis | |
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| shells of Pupilla pratensis | |
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Not evaluated (IUCN 3.1)
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): |
clade Heterobranchia
clade Euthyneura |
| Superfamily: | Pupilloidea |
| Family: | Pupillidae |
| Genus: | Pupilla |
| Species: | P. pratensis |
| Binomial name | |
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Pupilla pratensis (Clessin, 1871) |
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| Synonyms | |
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Pupa (Pupilla) muscorum var. pratensis Clessin, 1871 |
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clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Orthurethra
Pupa (Pupilla) muscorum var. pratensis Clessin, 1871
Pupilla pratensis is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Pupillidae. This taxon was elevated to species level in 2009.
Pupilla pratensis was originally described as a variety of Pupilla muscorum by German malacologist Stefan Clessin in 1871. The taxon Pupilla pratensis has long been neglected in the malacological literature, or considered a morphologically weakly defined ecophenotype – found in wet, calcareous habitats – of the variable Pupilla muscorum. The form, however, represents a distinct species, which has recently been shown in a study combining morphological, ecological and molecular data by von Proschwitz et al. (2007, 2009).Pupilla pratensis was misidentified as either Pupilla muscorum or Pupilla alpicola before 2009.
However, based on some 2012 preliminary molecular analyses, it seems that Pupilla pratensis and Pupilla alpicola are geographical subspecies of a single, more widely distributed species.
The shell of this species is dark to brown, translucent and thin, with fine and distinct growth lines, 6-7.5 whorls with deep suture, outline elongate and broad, aperture rounded with weakly developed lip, usually toothless, or with weak parietal and occasionally a palatal tooth, sometimes with weak cervical calllus.
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