Vertigo (gastropod)

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Vertigo
Vertigo moulinsiana 2.jpg
A live individual of Vertigo moulinsiana
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia

clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
clade Orthurethra

Superfamily: Pupilloidea
Family: Vertiginidae
Subfamily: Vertigininae
Tribe: Vertiginini
Genus: Vertigo
O. F. Müller, 1773[1]

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

Distribution[edit]

The distribution of the genus Vertigo includes Europe, northern Asia, eastern Asia, Japan, Central and North America, Caribbean and the Bermudas.[2]

Shell description[edit]

In this genus, the shell is deeply rimate and ovate. The apex is acuminate and obtuse. The shell has 5-6 whorls. The last whorl is rounded. The aperture is semioval with 4 to 7 folds. The peristome is scarcely expanded and white-lipped.[3]

Anatomy[edit]

Snails in the genus Vertigo have no oral tentacles, thus they have only one pair of tentacles.

The jaw is arched; the ends squarely truncated; the anterior surface striate; the cutting edge with a median projection. The radula has a central tooth that is almost square, tricuspid, as large as or larger than the lateral teeth, which are similar, narrower, and bi- or tricuspid. The marginal teeth are low, wide and serrated.[3]

Species[edit]

Apertural view of a shell of Vertigo heldi

Species in the genus Vertigo include:

subgenus Vertigo O. F. Müller, 1774

subgenus Vertilla Moquin-Tandon, 1856

subgenus ?

References[edit]

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

  1. ^ Müller O. F. 1773. Vermivm terrestrium et fluviatilium, seu animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia. Voluminis Imi pars Ima. pp. [1-33], 1-135. Havniæ & Lipsiæ. (Heineck & Faber).
  2. ^ "Genus summary for Vertigo"]. AnimalBase, last modified 30 January 2010, accessed 2 October 2010.
  3. ^ a b c Baker F. C. (25 April) 1902. The Mollusca of the Chicago Area. Part II. Gastropoda. Bulletin No. III. of the Natural History Survey, The Chicago Academy of Sciences, 418 pp. 33 plates, page 240-241.
  4. ^ Horsak, M. & Pokryszko, B. M. "Vertigo botanicorum sp. nov. (Gastropoda: Pulmonata: Vertiginidae)–a new whorl-snail from the Russian Altai Mountains." Zootaxa 2634 (2010): 57-62.
  5. ^ a b c d e f "Mollusca". Diversidad Biológica Cubana, accessed 23 March 2011.
  6. ^ (German) Ložek V. (1964). Quartärmollusken der Tschechoslowakei. – Rozpravy Ústředního ústavu geologického, Praha, 31: 374 pp., pages 204-205.
  7. ^ Proschwitz T. von (2007). "Vertigo ultimathule n. sp., a new whorl-snail from northernmost Sweden (Gastropoda: Pulmonata: Vertiginidae)". Heldia 5(3): 73-74, Taf. 9. München.

Further reading[edit]

  • Speight M. C. D., Moorkens E. A. & Falkner G. (2003). Proceedings of the workshop on conservation biology of European Vertigo species.
  • Myzyk S. (2005). "Egg structure of some vertiginid species (Gastropoda: Pulmonata: Vertiginidae)". Folia Malacologica 13: 169. (open access with registration required)

External links[edit]