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词条 Vertigo ronnebyensis
释义

  1. Shell description

  2. Distribution

  3. Habitat

  4. References

{{Taxobox
| image = Vertigo ronnebyensis shell.jpg
| image_caption = Apertural view of a shell of Vertigo ronnebyensis
| status = NE
| status_system =
| status_ref = [1]
| regnum = Animalia
| phylum = Mollusca
| classis = Gastropoda
| superfamilia = Pupilloidea
| familia = Vertiginidae
| subfamilia = Vertigininae
| tribus = Vertiginini
| genus = Vertigo
| subgenus = Vertigo
| species = V. ronnebyensis
| binomial = Vertigo ronnebyensis
| binomial_authority = (Westerlund, 1871)[2]
}}

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

Shell description

The shell is deeply perforate, long-ovate, regularly finely striate, very glossy and reddish-brown in color. The shell has 5½ convex whorls. The last whorl is about equal to the penult, which is a third higher than the preceding whorl, which is double the height of the next earlier. Last whorl has a transverse callus of the same color near the aperture. Suture is very oblique, ascending to the aperture.[3]

Aperture is quite obliquely piriform, excised by the very oblique parietal wall. Aperture has 4 teeth: 1 parietal lamella, 1 conic tooth at the lower end of the sharply emerging, dark-colored columella; 2 short, widely separated, deeply immersed palatal folds. Margins are delicately united, the outer margin is weakly arcuate, nearly straight, the columellar margin is broadly reflected.[3]

The width of the adult shell is 1.15-1.35 mm, the height is 2.0-2.35 mm.[3]

Distribution

This species occurs in:

  • Scandinavia: Sweden[3]
  • northwestern Russia
  • Central Europe: Germany,[3] Czech Republic, Poland

Habitat

This species lives in forests.

References

This article incorporates public domain text from reference.[4]

1. ^IUCN 2007. 2007 IUCN Red List of Threatened Species. . Downloaded on 19 September 2008.
2. ^Westerlund C. A. 1871. Exposé critique des mollusques de terre et d'eau douce de la Suède et de la Norvége. pp. [1-2], 1-200. Upsal. (Berling).
3. ^Species summary for Vertigo ronnebyensis. AnimalBase, accessed 23 June 2009.
4. ^Pilsbry H. A. & Cooke C. M. 1918-1920. Manual of Conchology. Second series: Pulmonata. [https://archive.org/details/manualofconcholo25tryorich Volume 25]. Pupillidae (Gastrocoptinae, Vertigininae). Philadelphia. pages [https://archive.org/stream/manualofconcholo25tryorich#page/192/mode/2up 192]-193.
{{Taxonbar|from=Q3200199}}

2 : Vertigo (gastropod)|Gastropods described in 1871

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