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From Wikipedia, the free encyclopedia

Aplexa
Shells of Aplexa hypnorum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Superorder: Hygrophila
Family: Physidae
Genus: Aplexa
Fleming, 1820[1]

Aplexa is a genus of small, left-handed or sinistral, air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Physidae.

Shell description

These small snails are quite distinctive, because they have shells that are sinistral, which means that if you hold the shell such that the spire is pointing up, then the aperture is on the left-hand side.

The shells of Aplexa species have a long and large aperture, a relatively high and pointed spire, and no operculum. The shells are thin and corneous and rather transparent.

Species

Species in the genus Aplexa include:

  • Aplexa atava White, 1877
  • Aplexa brevispirata (Cossmann, 1913)
  • Aplexa disjuncta (White, 1879)
  • Aplexa elongata (Say, 1821) - the lance aplexa
  • Aplexa gigantea (Michaud, 1837)
  • Aplexa grasseti (Matheron, 1878)
  • Aplexa heberti (Deshayes, 1863)
  • Aplexa hypnorum (Linnaeus, 1758) - the moss bladder snail
  • Aplexa jaimei (Hermite, 1879)
  • Aplexa kasekikabe (Isaji, 2010)
  • Aplexa macerata (Russell, 1937)
  • Aplexa militaria (Yen & Reeside, 1946)
  • Aplexa morrisonana (Yen & Reeside, 1946)
  • Aplexa praelonga (Matheron ex Heer, 1861)
  • Aplexa primigenia (Deshayes, 1863)
  • Aplexa prisca (Noulet, 1854)
  • Aplexa pseudogigantea (F. Sandberger, 1870)
  • Aplexa pulchella (A. d'Orbigny, 1850)
  • Aplexa ricei (Russell, 1957)
  • Aplexa rivalis (Maton & Rackett, 1807)
  • Aplexa subelongata (Meek & Hayden, 1856)
  • Aplexa subhypnorum (Gottschick, 1920)

[2]

References

  1. ^ Fleming J. (1830). Mollusca. pp. 598-635, in: Brewster D. The Edinburgh Encyclopædia. In eighteen volumes. Volume XIV [= 14] [MED-MUS]. pp. [1], 1-748, Pl. CCCLXXII-CCCC [= 372-400]. Edinburgh. (Blackwood).
  2. ^ "Aplexa - Encyclopedia of Life". Eol.org. Retrieved 2022-05-01.

Further reading

This page was last edited on 19 February 2024, at 09:54
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