Streptaxis

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Streptaxis
Streptaxis contusus (MNHN-IM-2000-30915).jpeg
Shell of Streptaxis contusus (syntype at MNHN, Paris)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Superfamily: Streptaxoidea
Family: Streptaxidae
Genus: Streptaxis
Gray, 1837 [1]
Type species
Helix contusaFérussac, 1821
Synonyms
  • AlcidiaBourguignat, 1890
  • ArtemonH. Beck, 1837
  • EustreptaxisL. Pfeiffer, 1878 (objective junior synonym)
  • Gonaxis (Eustreptaxis)L. Pfeiffer, 1878
  • Helix (Streptaxis)Gray, 1837 (original combination)
  • Streptaxis (Artemon)H. Beck, 1837
  • Streptaxis (Eustreptaxis)L. Pfeiffer, 1878

Streptaxis is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae. [2] [3]

Contents

Description

The oval shell has a heliciform shape, but is often oblique. It is profoundly umbilicated, ridged, striate above, smooth and usually polished below. The last whorls are usually deviating more or less from the original axis. The aperture is lunar, with or without teeth. The outer lip slightly thickened and reflected.

The animal has a very long neck and short tail. The superior tentacles are narrow and long. The labial palpi are narrow, as long as the inferior tentacles. The genital orifice is on the right side, distant from the superior tentacle, and closer to the respiratory orifice. The radula is similar to that of Glandina; the central tooth is simple. [4]

Distribution

The distribution of the genus Streptaxis includes:

Species

Species within the genus Streptaxis include:

Synonyms

References

  1. Gray (1837). Mag. nat. Hist., (N.S.) 1: 485.
  2. 1 2 3 4 Sutcharit C., Naggs F., Wade C. M., Fontanilla I. & Panha S. (2010). "The new family Diapheridae, a new species of Diaphera Albers from Thailand, and the position of the Diapheridae within a molecular phylogeny of the Streptaxoidea (Pulmonata: Stylommatophora)". Zoological Journal of the Linnean Society 160: 1–16. doi : 10.1111/j.1096-3642.2009.00598.x.
  3. MolluscaBase eds. (2021). MolluscaBase. Streptaxis Gray, 1837. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=851334 on 10 February 2021
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A synopsis of the genus Streptaxis and its allies; Proceedings of The Malacological Society of London vol. 5 (1902) PD-icon.svg This article incorporates text from this source, which is in the public domain .
  5. 1 2 3 4 5 6 7 8 9 10 11 12 13 (in Portuguese) Salgado N. C. & Coelho A. C. S. (2003). "Moluscos terrestres do Brasil (Gastrópodes operculados ou não, exclusive Veronicellidae, Milacidae e Limacidae)". Rev. Biol. Trop.51(Suppl. 3): 149–189. (with English abstract), PDF Archived 4 October 2011 at the Wayback Machine .
  6. WMSDB : Streptaxis pfeifferi
  7. WMSDB: Streptaxis piquetensis
  8. WMSDB: Streptaxis subregularis