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Pyramidula pusilla

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(Redirected from Pyramidula umbilicata) Species of gastropod

Pyramidula pusilla
Shell of Pyramidula pusilla (specimen at MNHN, Paris)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Pyramidulidae
Genus: Pyramidula
Species: P. pusilla
Binomial name
Pyramidula pusilla
(Vallot, 1801)
Synonyms
  • Helix pusilla Vallot, 1801 · unaccepted (original combination)
  • Helix spirula A. Villa & J. B. Villa, 1841 · unaccepted (junior synonym)
  • Helix umbilicata Montagu, 1803 · unaccepted (original name)
  • Pyramidula umbilicata (Montagu, 1803) · unaccepted > junior subjective synonym

Pyramidula pusilla is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Pyramidulidae.

Shell description

The width of the shell is up to 2.95 mm, the height is up to 2.25 mm. The shell has a low conical shape, broader than high. It is and tightly coiled. The apical whorls regularly increase. The umbilicus is 1/4 of the diameter (in some Spain localities 1/3). The growth lines are fine and narrow, sometimes weak. The colour is red brown becoming more grey with age.

Distribution

The geographical distribution of this species is mainly Mediterranean: western and central Europe, southeastern Europe, Caucasus, Central Asia and probably the Russian Far East.

Europe (not a complete list):

Southwestern Asia (not a complete list):

Central Asia:

References

  1. Vallot J. N. 1801. Exercice sur l'histoire naturelle. pp. 1-8. Dijon. (École centrale de département de la Côte d'Or).
  2. MolluscaBase eds. (2022). MolluscaBase. Pyramidula pusilla (Vallot, 1801). Accessed through: World Register of Marine Species at: https://marinespecies.org/aphia.php?p=taxdetails&id=1002793 on 2022-03-15
  3. ^ Gittenberger E. & Bank R. A. 1996. A new start in Pyramidula (Gastropoda Pulmonata: Pyramidulidae). Basteria 60: 71-78.
  4. ^ (in Russian) Balashov I.A. & Gural-Sverlova N.V. 2011. Terrestrial molluscs of the genus Pyramidula (Pyramidulidae, Pulmonata, Gastropoda) in the East Europe, Central Asia and adjacent territories. Zoologicheskii Zhurnal. 90 (12): 1423-1430.
  5. ^ Falkner G., Bank R.A. & Proschwitz T. 2001. CLECOM-PROJECT: Check-list of the non-marine Molluscan species-group taxa of the states of Northern, Atlantic and Central Europe (CLECOM I). Heldia. 4: 1–76.
  6. ^ Alberto Martínez-Ortí, Benjamín J. Gómez-Moliner & Carlos E. Prieto. 2007. El género Pyramidula Fitzinger 1833 (Gastropoda, Pulmonata) en la Península Ibérica. The genus Pyramidula Fitzinger 1833 (Gastropoda, Pulmonata) in the Iberian Peninsula. Iberus, Sociedad Española de Malacología, 25 (1): 77-87.
  7. Irikov A. & Zoltan E.. 2008. An updated and annotated checklist of Bulgarian terrestrial gastropods (Mollusca: Gastropoda). Folia Malacologica. 16 (4): 199-207.
  8. Juřičková L., Horsák M, Beran L. & Dvořák L. Check-list of the molluscs (Mollusca) of the Czech Republic. Last update: 26-August-2008.
  9. (in Slovak) Lisický M. J. (1991). Mollusca Slovenska . VEDA vydavateľstvo Slovenskej akadémie vied, Bratislava, 344 pp.
  10. Hausdorf B. & Henning C. 2006. Biogeographical tests of the vicariance model in Mediterranean land snails. Journal of Biogeography. 33: 1202–1211.

External links

Taxon identifiers
Pyramidula pusilla


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