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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."Genus summary for ''Discus''" , last modified 15 january 2009, accessed 13 January 2011. Description Discus species have small or medium shells with ribs. The |
Discus Rotundatus
''Discus rotundatus'', common name rotund disc, is a species of small, air-breathing, land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disk snails. Description The shells of ''Discus rotundatus'' in the adult stage measure in diameter and in height. Shells are reddish brown with darker cross bands, flat and densely ribbed. The umbilicus is quite wide, reaching about 1/3 of the shell diameter. Among the species of ''Discus'' in Europe and North America, ''Discus rotundatus'' is recognized by the alternating pattern of reddish brown spots, tight coiling of the whorls and broad and shallow umbilicus. The body of this gastropod is bluish black on the upperside, while the lower side is greyish white. They mainly feed on plant debris, humus, algae and fungi. Cycle of life These snails, like most terrestrial gastropods, are hermaphrodite. The reproductive season last from May to October. Usually they lay 20-50 eggs in rotting wood or below decay ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discus Marmorensis
''Discus marmorensis'', common name "the marbled disc", is a species of small, air-breathing, land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae Discidae is a taxonomic family of small air-breathing land snails, terrestrial gastropod mollusks in the superfamily Punctoidea. Genera The family Discidae has no subfamilies. Genera within the family Discidae include: * ''Anguispira'' Morse, ..., the disk snails. This species is endemic to the United States. References * Discidae Molluscs of the United States Gastropods described in 1932 Taxonomy articles created by Polbot {{Discidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discus Macclintocki
''Discus macclintocki'' is a species of land snail in the family Discidae known commonly as the Iowa Pleistocene snail and Pleistocene disc. It occurs in Iowa and Illinois in the United States.Frest, T. 2004''Discus macclintocki''.The IUCN Red List of Threatened Species 2004. Downloaded on 18 August 2017. It is a federally listed endangered species.Iowa Pleistocene Snail (''Discus macclintocki''). Endangered Species. USFWS Midwest Region. 2013. Biology This snail is limited to patches of habitat. It is a |
Discus Guerinianus
''Atlantica gueriniana'' is a species of small air-breathing land snail, a terrestrial gastropod mollusk presently in the family Gastrodontidae,MolluscaBase eds. (2022). MolluscaBase. Atlantica gueriniana (R. T. Lowe, 1852). Accessed through: World Register of Marine Species at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1002131 on 2023-06-19 but formerly in Discidae, the disk snails. Distribution This species is endemic to Madeira, Portugal. Shell description The shell of these snails is shaped like a discus, or a lens, with a noticeable "edge" around the periphery of the whorl A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral ...s. Conservation status This species is mentioned in annexes IV and IV of the Habitats Directive. References {{Gastrodontidae-stub G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jules François Mabille
Jules François Mabille (Tours, 5 December 1831 − 18 January 1904) was a French malacologist, biologist and zoologist who in many trips around the world discovered and studied many species of mollusc. In 1882−83 Mabille participated in the French scientific expedition to Cape Horn and the South Seas, with his fellow malacologist Alphonse Trémeau de Rochebrune Alphonse Amédée Trémeau de Rochebrune was a French botanist, malacologist and a zoologist. He was born on 18 September 1836 in Saint-Savin, and died on 23 April 1912 in Paris. Biography The son of a curator of the Museum of Angoulême, he bec ... and they described many new species of mollusc. His extensive research was written up in 1889. References External lin ...
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Philippe Bouchet
Philippe Bouchet (born 1953) is a French biologist whose primary scientific fields of study are malacology (the study of molluscs) and taxonomy. He works at the Muséum National d'Histoire Naturelle in Paris. He is also a Commissioner of the International Commission on Zoological Nomenclature. Bouchet published Taxonomy of the Gastropoda with the malacologist Jean-Pierre Rocroi in 2005, which laid out a new taxonomy of Gastropod molluscs. He has named over 500 new taxa of mollusks, and numerous taxa have been named in his honor. Professional achievements Bouchet is a senior professor at the Muséum National d'Histoire Naturelle in Paris, and is head of the Malacology laboratory and the Taxonomy Collections Unit there. He is also one of the Commissioners of the International Commission on Zoological Nomenclature and has been a member of the ICZN since 1990. Philippe Bouchet is co-editor of several volumes in the Tropical Deep-Sea Benthos series. In 2005, Bouchet was the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discus Engonatus
''Canaridiscus engonatus'' is an extinct species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disk snails. ''Canaridiscus engonatus'' was listed as Data deficient in the ''1996 IUCN Red List'', and was later considered to be extinct.Alonso R. & Ibanez M. (1996). ''Discus engonata''. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.4. . Downloaded on 13 January 2011.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. PDF The present IUCN status is Critically Endangered (Possibly Extinct). Distribution This species was endemic to Tenerife, Canary Islands The Canary Islands (; es, Canarias, ), also known informally as the Canaries, are a Spanish autonomous community and archipelago in the Atlantic Ocean, in Macaronesia. At ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
