Discus (gastropod)
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 shell with ribs.[2] The umbilicus is wide.[2]
Species
Species in this genus include:
subgenus Discus Fitzinger, 1833
subgenus Gonyodiscus Fitzinger, 1833
subgenus ?
- Discus brunsoni Berry, 1955 - Lake Disc[4]
- Discus bryanti (Harper, 1881) - saw-tooth disc, sawtooth disc[4]
- Discus catskillensis (Pilsbry, 1896) - angular disc[4]
- Discus clappi (Pilsbry, 1924) - channelled disc[4]
- Discus engonatus Shuttleworth, 1852 - extinct[5][6]
- Discus ganodus Mabille, 1882
- Discus gomerensis Rähle, 1994
- Discus guerinianuss R. T. Lowe, 1852
- Discus kompsus J. Mabille, 1883
- Discus macclintocki F. C. Baker, 1928 - iowa pleistocene snail, Pleistocene disc[4]
- Discus marmorensis H. B. Baker, 1932 - Marbled Disc[4]
- Discus nigrimontanus Pilsbry, 1924 - Black Mountain disc[4]
- Discus patulus (G. P. Deshayes, 1830) - domed disc[4]
- Discus putrescens (R. T. Lowe, 1861)
- Discus retextus Shuttleworth, 1852[6]
- Discus scutula Shuttleworth, 1852[7]
- Discus selenitoides (Pilsbry, 1890) - file disc[4]
- Discus shimekii (Pilsbry, 1890) - Striate Disc[4]
- Discus textilis Shuttleworth, 1852 - extinct[6]
- Discus whitneyi (Newcomb, 1864) - Forest Disc[4]
References
- ^ 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.
- ^ a b c "Genus summary for Discus". AnimalBase, last modified 15 january 2009, accessed 13 January 2011.
- ^ a b c "Species in genus Discus (n=3). AnimalBase, accessed 13 January 2011.
- ^ a b c d e f g h i j k l "Discus Fitzinger, 1833". accessed 13 January 2011.
- ^ Alonso R. & Ibanez M. (1996). Discus engonatus. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.4. <www.iucnredlist.org>. Downloaded on 13 January 2011.
- ^ 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 the page 173. doi:10.1016/j.biocon.2007.06.012. PDF.
- ^ Alonso R. & Ibanez M. (1996). Discus scutula. 2006 IUCN Red List of Threatened Species. Downloaded on 6 August 2007.