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.[2]
Description
Discus species have small or medium shells with ribs.[2] The umbilicus is wide.[2]
Species
Species in this genus include:
subgenus Discus Fitzinger, 1833
subgenus Gonyodiscus Fitzinger, 1833
subgenus ?
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Discus brunsoni Berry, 1955 – Lake Disc[4]
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Discus bryanti (Harper, 1881) – saw-tooth disc, sawtooth disc[4]
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Discus catskillensis (Pilsbry, 1896) – angular disc[4]
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Discus clappi (Pilsbry, 1924) – channelled disc[4]
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Discus engonatus Shuttleworth, 1852 – extinct[5][6]
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Discus ganodus Mabille, 1882
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Discus gomerensis Rähle, 1994
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Discus guerinianus R. T. Lowe, 1852
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Discus kompsus J. Mabille, 1883
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Discus macclintocki F. C. Baker, 1928 – Iowa pleistocene snail, Pleistocene disc[4]
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Discus marmorensis H. B. Baker, 1932 – Marbled Disc[4]
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Discus nigrimontanus Pilsbry, 1924 – Black Mountain disc[4]
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Discus patulus (G. P. Deshayes, 1830) – domed disc[4]
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Discus putrescens (R. T. Lowe, 1861)
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Discus retextus Shuttleworth, 1852[6]
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Discus scutula Shuttleworth, 1852[7]
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Discus selenitoides (Pilsbry, 1890) – file disc[4]
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Discus shimekii (Pilsbry, 1890) – Striate Disc[4]
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Discus textilis Shuttleworth, 1852 – extinct[6]
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Discus whitneyi (Newcomb, 1864) – Forest Disc[4]
References
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^ 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.
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^ a b c "Genus summary for Discus". AnimalBase, last modified 15 january 2009, accessed 13 January 2011.
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^ a b c "Species in genus Discus (n=3). AnimalBase, accessed 13 January 2011.
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^ a b c d e f g h i j k l "Discus Fitzinger, 1833". accessed 13 January 2011.
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^ Alonso R. & Ibanez M. (1996). Discus engonatus. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.4. . Downloaded on 13 January 2011.
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^ a b c Fontaine B., Bouchet P., Van Achterberg K., Alonso-Zarazaga M. A., Araujo R. et al. (2007). "The European union’s 2010 target: Putting rare species in focus." Biological Conservation 139: 167–185. Table 2 on p. 173. doi:10.1016/j.biocon.2007.06.012. PDF.
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^ Alonso, M.R.; Ibáñez, M.; Groh, K. (2017). "Atlantica scutula". IUCN Red List of Threatened Species. 2017: e.T6738A101390175. doi:10.2305/IUCN.UK.2017-3.RLTS.T6738A101390175.en. Retrieved 18 November 2021.
