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Thapsia (gastropod)

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Thapsia
Shell of Thapsia troglodytes (syntype at MNHN? Paris)
Scientific classification Edit this classification
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
  • Gudeella Preston, 1913 (junior synonym)
  • Megathapsia Raemaekers, 1959
  • Nanina (Thapsia) E. von Martens, 1860 (superseded rank)
  • Tapsia [sic] (misspelling)
  • Thapsia (Gudeella) Preston, 1913 · unaccepted (junior synonym)
  • Thapsiella Gude, 1911 (junior primary homonym of...)
  • Thapsinella Raemaekers, 1959 ·

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

Distribution

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

Description

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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

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Thapsia was originally designated in 1860 by German zoologist Johann Christian Albers as a subgenus of Nanina Gray, 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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  • Thapsia calamechroa (Jonas, 1843): synonym of Saphtia calamechroa (Jonas, 1843) (superseded combination)
  • Thapsia calamichroa (Jonas, 1843): synonym of Saphtia calamechroa (Jonas, 1843) (invalid; incorrect subsequent spelling)
  • Thapsia chrysosticta (Morelet, 1867): synonym of Apothapsia thomensis (Dohrn, 1866)
  • Thapsia euriomphala Bourguignat, 1883: synonym of Thapsia abyssinica (Jickeli, 1873)
  • Thapsia germaini Connolly, 1925: synonym of Apothapsia thomensis (Dohrn, 1866)
  • Thapsia gerstenbrandti (Preston, 1914): synonym of Thapsia elgonensis (Preston, 1914) (junior synonym)
  • Thapsia mixta E. A. Smith, 1899: synonym of Thapsia pinguis (Krauss, 1848)
  • Thapsia rumrutiensis Preston, 1911: synonym of Afroguppya rumrutiensis (Preston, 1911) (original combination)
  • Thapsia sjoestedti d'Ailly, 1896: synonym of Vanmolia sjoestedti (d'Ailly, 1896) (original combination)
  • Thapsia thomensis (Dohrn, 1866): synonym of Apothapsia thomensis (Dohrn, 1866)

References

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  1. ^ a b 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. ^ a b c d e f 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.
  • Bank, R. A. (2017). Classification of the Recent terrestrial Gastropoda of the World. Last update: July 16, 2017.
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