Thapsia (gastropod)

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Thapsia
Thapsia troglodytes (MNHN-IM-2000-33286).jpeg
Shell of Thapsia troglodytes (syntype at MNHN? Paris)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Infraorder: Limacoidei
Superfamily: Helicarionoidea
Family: Urocyclidae
Genus: Thapsia
Albers, 1860 [1]
Type species
Helix troglodytes
Morelet, 1848
Synonyms
  • GudeellaPreston, 1913 (junior synonym)
  • MegathapsiaRaemaekers, 1959
  • Nanina (Thapsia)E. von Martens, 1860 (superseded rank)
  • Tapsia [sic] (misspelling)
  • Thapsia (Gudeella)Preston, 1913 · unaccepted (junior synonym)
  • ThapsiellaGude, 1911 (junior primary homonym of...)
  • ThapsinellaRaemaekers, 1959 ·

Thapsia is a genus of air-breathing land snails, terrestrial pulmonate gastropod molluscs in the subfamily Sheldoniinae of the family Urocyclidae. [2]

Contents

Distribution

Species in this genus are found in tropical western Africa, from Senegal to Gabon.

Description

Species attributed to the genus Thapsia sensu lato have shell diameters ranging from about 15 to 30 mm, with 5½-6½ whorls. These rather featureless dextral shells are characterized by a low spire and their yellow to brown color. The spiral sculpture of the postembryonic shell is slender. In some larger * The sculpture of the radial ribs is formed crosswise (like the letter X) or beadlike. The foot shows a long caudal horn.

Species

Thapsia was originally designated in 1860 by German zoologist Johann Christian Albers as a subgenus of NaninaGray, 1834, non Risso, 1826. [1]

This genus is a heterogeneous assemblage. Because the shell characters of this genus converge with those of the larger specimens of some closely related genera ( Saphtia Winter, 2008, [3] Pseudosaphtia Winter, 2008 [3] and Vanmolia Winter, 2008 [3] ), the delimitation of * To Thapsia s.l. is difficult. There very few papers that describe the anatomical features of this genus.

Thapsia contains the following species:

Synonyms

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References

  1. 1 2 Albers J. C. (1860). "Die Heliceen nach natürlichen Verwantschaft systematisch geordnet, ed. 2" (Manuscript edited by E. von Martens): xviii + 359 pp. Engelmann, Leipzig.
  2. ↑ MolluscaBase eds. (2022). MolluscaBase. Thapsia E. von Martens, 1860. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=996919 on 2022-09-24
  3. 1 2 3 4 5 6 Winter A.J. de (2008). "Redefinition of Thapsia Albers, 1860, and description of three more helicarionoid genera from western Africa (Gastropoda, Stylommatophora)". Zoologische Mededelingen. 82.
  4. ↑ "WoRMS - World Register of Marine Species - Thapsia hanningtoni (E. A. Smith, 1890)". www.marinespecies.org. Retrieved 17 October 2021.
  5. ↑ https://www.gbif.org/occurrence/1056994459 Thapsia snelli
  6. ↑ "WoRMS - World Register of Marine Species - Thapsia vestii (Jickeli, 1873)". www.marinespecies.org. Retrieved 25 October 2021.
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