Discus (gastropod)

Discus
A live Discus rotundatus
A live Discus catskillensis
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Discidae
Genus:
Fitzinger, 1833[1]
Synonyms[2]
  • Allerya Bourguignat, 1878
  • Delomphalus Charpentier, 1837
  • Eyryomphala H.Beck, 1837
  • Goniodiscus
  • Gonyodiscus Fitzinger, 1833
  • Patula Held, 1838
  • Patularia Clessin, 1876

Discus is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Discidae, the disk snails.

Distribution

Distribution of the genus Discus include Europe, northern Asia and North America.[3] The former subgenus Canaridiscus from the Canary Islands off North Africa, which was previously allocated to Atlantica, is now raised to a full genus.

Description

Discus species have small or medium shells with ribs.[3] The umbilicus is wide.[3]

Species

Species in this genus include:

subgenus Discus Fitzinger, 1833

subgenus Gonyodiscus Fitzinger, 1833

subgenus ?

  • Discus bryanti (Harper, 1881) – saw-tooth disc, sawtooth disc[5]
  • Discus catskillensis (Pilsbry, 1896) – angular disc[5]
  • Discus clappi (Pilsbry, 1924) – channelled disc[5]
  • Discus macclintocki F. C. Baker, 1928 – Iowa pleistocene snail, Pleistocene disc[5]
  • Discus nigrimontanus Pilsbry, 1924 – Black Mountain disc[5]
  • Discus patulus (G. P. Deshayes, 1830) – domed disc[5]
  • Discus selenitoides (Pilsbry, 1890) – file disc[5]
  • Discus shimekii (Pilsbry, 1890) – striate disc[5]
Species brought into synonymy[6]
  • Discus alternata: synonym of Anguispira alternata (superseded combination)
  • Discus cronkhitei: synonym of Discus whitneyi (junior subjective synonym)
  • Discus gomerensis: synonym of Canaridiscus gomerensis
  • Discus laurisilvae: synonym of Canaridiscus laurisilvae
  • Discus orientalus: synonym of Calogoniodiscus orientalus (superseded combination)
  • Discus perelegans: synonym of Calogoniodiscus perelegans (superseded combination)
  • Discus rupivagus: synonym of Canaridiscus rupivagus
  • Discus serratus: synonym of Priodiscus serratus (superseded combination)
  • Discus victorianus: synonym of Radiocentrum victoriana (superseded combination)
  • Discus vorticella: synonym of Ctenophila vorticella (superseded combination)

References

  1. ^ Fitzinger L. I. (1833). "Systematisches Verzeichniß der im Erzherzogthume Oesterreich vorkommenden Weichthiere, als Prodrom einer Fauna derselben". Beiträge zur Landeskunde Oesterreich's unter der Enns 3: 88–122. Wien.
  2. ^ "Discus". Global Biodiversity Information Facility.
  3. ^ a b c "Genus summary for Discus". AnimalBase, last modified 15 January 2009, accessed 13 January 2011.
  4. ^ a b c "Species in genus Discus (n=3). AnimalBase, accessed 13 January 2011.
  5. ^ a b c d e f g h i j k l "Discus". Integrated Taxonomic Information System. Retrieved 19 June 2023.
  6. ^ MolluscaBase eds. (2022). MolluscaBase. Discus Fitzinger, 1833. Accessed through: World Register of Marine Species at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=851153 on 20 June 2023