''Doryssa'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
freshwater snail
Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs ...
s which have an
operculum,
aquatic gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...
s in the family
Pachychilidae
Pachychilidae, common name pachychilids, is a taxonomic family of freshwater snails, gastropod molluscs in the clade Sorbeoconcha.Gofas, S. (2014). Pachychilidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/ ...
.
Distribution
These freshwater snails are
endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...
.
Species
Species within the genus ''Doryssa'' include:
* ''
Doryssa atra'' (Bruguière, 1792)
[Baker H. B. (1930). "The Mollusca collected by the University of Michigan – Williamson expedition in Venezuela". '' Occasional Paper of Museum of zoology'' 210: 1–95]
PDF
/ref>
* '' Doryssa brevior'' (Troschel, 1848) - type species of the genus ''Doryssa''[Bouchet, P. (2015). ''Doryssa'' H. Adams & A. Adams, 1854. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=848311 on 2015-10-09]
* ''Doryssa consolidata
''Doryssa consolidata'' is a species of freshwater snail with an Operculum (gastropod), operculum, an aquatic animal, aquatic gastropod mollusk in the family Pachychilidae.
Distribution
This species occurs in the South America:
* List of non-mar ...
'' (Bruguière, 1790)[ Abbott R. T. (1955). "Anatomy of the Venezuelan gastropod, ''Doryssa kappleri''". '' The Nautilus'' 69]
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* ''Doryssa lamarckiana
''Doryssa lamarckiana'' is a species of freshwater snail with an operculum, an aquatic gastropod mollusc in the family Pachychilidae.
Distribution
Distribution of ''Doryssa lamarckiana'' include Venezuela.Baker H. B. (1930). "The Mollusca col ...
'' (Brot, 1870)Doryssa petechialis
''Doryssa'' is a genus of freshwater snails which have an operculum, aquatic gastropod mollusks in the family Pachychilidae.
Distribution
These freshwater snails are endemic to South America.
Species
Species within the genus ''Doryssa'' i ...
'' (Brot, 1860)
* ''Doryssa schuppi
''Doryssa'' is a genus of freshwater snails which have an Operculum (gastropod), operculum, aquatic animal, aquatic gastropod mollusks in the family Pachychilidae.
Distribution
These freshwater snails are Endemism, endemic to South America.
...
'' (Ihering, 1902)
* ''Doryssa transversa
''Doryssa'' is a genus of freshwater snails which have an operculum, aquatic gastropod mollusks in the family Pachychilidae.
Distribution
These freshwater snails are endemic to South America.
Species
Species within the genus ''Doryssa'' i ...
'' (Lea, 1850)
File:Doryssa atra del Rio Ventuari, Amazonas - Venezuela 003.jpg, '' Doryssa atra''
File:Doryssa hohenackery kappleri 004.jpg, '' Doryssa hohenackeri''
File:Doryssa kappleri 000.jpg, '' Doryssa kappleri''
References
External links
{{Taxonbar, from=Q21221768
Doryssa
Freshwater snails
Gastropod genera