Vertigo pygmaea

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Vertigo pygmaea
Vertigo pygmaea shell.jpg
Apertural view of a shell of Vertigo pygmaea
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Stylommatophora
Family: Vertiginidae
Subfamily: Vertigininae
Genus: Vertigo
Species:
V. pygmaea
Binomial name
Vertigo pygmaea
(Draparnaud, 1801) [1]
Synonyms
  • Alaea vulgarisJeffreys, 1830 (junior synonym)
  • Helix (Isthmia) cylindricaGray, 1821 (junior synonym)
  • Pupa (Nearctula) superiorisPilsbry, 1899
  • Pupa (Vertigo) heldiClessin, 1877 (junior synonym)
  • Pupa (Vertigo) pygmaea(Draparnaud, 1801) (superseded combination)
  • Pupa pygmæaDraparnaud, 1801
  • Vertigo (Isthmia) pygmaea(Draparnaud, 1801) · alternate representation
  • Vertigo (Vertigo) heldi(Clessin, 1877) (junior synonym)
  • Vertigo (Vertigo) pygmaea(Draparnaud, 1801)· accepted, alternate representation
  • Vertigo callosaSterki, 1890
  • Vertigo heldi(Clessin, 1877) (junior synonym)

Vertigo pygmaea, common name the "crested vertigo", is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vertiginidae, the whorl snails. [2]

Contents

Shell description

Drawing of a shell of Vertigo pygmaea Vertigo pygmaea shell 2.jpg
Drawing of a shell of Vertigo pygmaea

The shell is extremely small, oval-cylindric and obtuse at the summit, of a more or less deep brown, smooth and dull. The spire consists of five whorls. [3]

The aperture is scarcely longer than wide, and nearly round, furnished with four teeth, of which the superior is acute, two deeply placed inferior, and finally one on the columellar margin. A fifth tooth is often found in the base of the aperture. The lateral margin is slightly angular in the middle. Peristome is reflected below. The umbilical crevice quite pronounced. [3]

This snail lives under hedges. [3]

(description as Vertigo heldi) The shell is rimate, turreted, irregularly and very finely striate, of reddish-brown color, glossy. The shell has 6 whorls, that are slowly increasing and rather convex. The first 3 whorls form a blunt summit which is about ⅓ the length of the shell. The last 3 whorls are of nearly equal height and form the remaining cylindric part of the shell. The last whorl is neither calloused nor contracted preceding the aperture. [3]

The aperture is about ¼ the length of shell, arcuately convex, somewhat impressed on the outer side, the impression running as a groove-like depression for a short distance on the last whorl. Aperture is toothed, the teeth are reddish, very weak and placed deep in the throat: 1 tooth on the middle of the parietal wall, 1 on the columella, 2 very weakly developed, frequently wanting, on the palatal wall. Peristome is continuous, somewhat expanded, little thickened. [3]

The width of the adult shell is 1.1-1.25 mm, the height is 2.4-2.7 mm. [4] [3]

Distribution

Distribution Vertigo-pygmaea-map-eur-nm-moll.jpg
Distribution

This species occurs in Europe in the following countries and islands:

And in America, in various places including:

Related Research Articles

<i>Vertigo</i> (gastropod) Genus of gastropods

Vertigo is a genus of minute, air-breathing land snails, terrestrial pulmonate gastropod molluscs or micromollusks in the family Vertiginidae, the whorl snails.

<i>Vertigo angustior</i> Species of gastropod

Vertigo angustior, the narrow-mouthed whorl snail, is a species of minute land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Vertiginidae, the whorl snails.

<i>Pupilla</i> Genus of gastropods

Pupilla is a genus of minute air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the subfamily Pupillinae of the family Pupillidae.

<i>Macrogastra ventricosa</i> Species of gastropod

Macrogastra ventricosa is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Clausiliidae, the door snails.

<i>Macrogastra plicatula</i> Species of gastropod

Macrogastra plicatula is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Clausiliidae, the door snails.

<i>Laciniaria plicata</i> Species of gastropod

Laciniaria plicata is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Clausiliidae, the door snails.

<i>Orcula dolium</i> Species of gastropod

Orcula dolium is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Orculidae.

<i>Vertigo antivertigo</i> Species of gastropod

Vertigo antivertigo is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusc or micromollusc in the family Vertiginidae, the whorl snails.

<i>Vertigo pusilla</i> Species of gastropod

Vertigo pusilla is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Vertiginidae, the whorl snails.

<i>Xerosecta cespitum</i> Species of gastropod

Xerosecta cespitum is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae, the hairy snails and their allies.

<i>Columella edentula</i> Species of gastropod

Columella edentula, common name the "toothless column snail", is a species of very small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Truncatellinidae.

<i>Cochlicella barbara</i> Species of gastropod

Cochlicella barbara, now known as Prietocella barbara, is a species of small but high-spired, air-breathing land snail, a pulmonate gastropod mollusk in the family Geomitridae.

<i>Ena montana</i> Species of gastropod

Ena montana is a species of air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Enidae.

<i>Pyramidula rupestris</i> Species of gastropod

Pyramidula rupestris is a species of very small, air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the family Pyramidulidae.

<i>Succinella oblonga</i> Species of gastropod

Succinella oblonga is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Succineidae.

<i>Punctum pygmaeum</i> Species of gastropod

Punctum pygmaeum is a species of very small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Punctidae, the dot snails.

<i>Punctum</i> (gastropod) Genus of gastropods

Punctum is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the subfamily Punctinae of the family Punctidae, the dot snails.

<i>Clausilia rugosa</i> Species of gastropod

Clausilia rugosa is a species of air-breathing land snails, a terrestrial pulmonate gastropod mollusc in the family Clausiliidae.

<i>Sphincterochila candidissima</i> Species of gastropod

Sphincterochila candidissima is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Sphincterochilidae.

Cathaica fasciola is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Camaenidae, which is similar to Cathaica pyrrhozona on shell morphology.

References

This article incorporates public domain text from reference. [3]

  1. ↑ Draparnaud J. P. R. 1801. Tableau des mollusques terrestres et fluviatiles de la France. pp. [1-2], 1-116. Montpellier, Paris. (Renaud; Bossange, Masson & Besson).
  2. ↑ MolluscaBase eds. (2023). MolluscaBase. Vertigo pygmaea (Draparnaud, 1801). Accessed through: World Register of Marine Species at: https://marinespecies.org/aphia.php?p=taxdetails&id=426427 on 2023-02-11
  3. 1 2 3 4 5 6 7 Pilsbry H. A. & Cooke C. M. 1918-1920. Manual of Conchology. Second series: Pulmonata. Volume 25. Pupillidae (Gastrocoptinae, Vertigininae). Philadelphia. page 174.
  4. ↑ Species summary for Vertigo heldi. AnimalBase, accessed 23 June 2009.
  5. ↑ Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
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