''Discula'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
of small
land snails,
terrestrial
Terrestrial refers to things related to land or the planet Earth.
Terrestrial may also refer to:
* Terrestrial animal, an animal that lives on land opposed to living in water, or sometimes an animal that lives on or near the ground, as opposed to ...
pulmonate gastropod 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 es ...
s in the
family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
Geomitridae
Geomitridae is a taxonomic family of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.MolluscaBase eds. (2021). MolluscaBase. Geomitridae C.R. Boettger, 1909. Accessed throu ...
.
Shell description
The shell of these snails is shaped rather like a
discus, or a
lens
A lens is a transmissive optical device which focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (''elements'' ...
, with a sharp edge around the periphery of the whorls.
Species
Species in the genus ''Discula'' include:
* ''
Discula attrita''
* ''
Discula bulverii''
* ''
Discula calcigena
''Discula'' is a genus of small land snails, terrestrial pulmonate gastropod mollusks in the family Geomitridae.
Shell description
The shell of these snails is shaped rather like a discus, or a lens, with a sharp edge around the periphery of ...
''
* ''
Discula cheiranthicola
''Discula cheiranthicola'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae.
This species is endemic to Madeira
)
, anthem = ( en, "Anthem of the Autonomous Region of Madeira" ...
''
* ''
Discula cockerelli
''Discula'' is a genus of small land snails, terrestrial pulmonate gastropod mollusks in the family Geomitridae.
Shell description
The shell of these snails is shaped rather like a discus, or a lens, with a sharp edge around the periphery of ...
''
* ''
Discula leacockiana''
* ''
Discula lyelliana''
* ''
Discula polymorpha''
* ''
Discula pulvinata
''Discula'' is a genus of small land snails, terrestrial pulmonate gastropod mollusks in the family Geomitridae.
Shell description
The shell of these snails is shaped rather like a discus, or a lens, with a sharp edge around the periphery of ...
''
*''
Discula rotula
''Discula rotula'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae.
Habitat
This species is endemic to the Porto Santo Island, Madeira, Portugal, where it can be found under rocks ...
''
* ''
Discula tabellata''
* ''
Discula tectiformis
''Discula'' is a genus of small land snails, terrestrial pulmonate gastropod mollusks in the family Geomitridae.
Shell description
The shell of these snails is shaped rather like a discus, or a lens, with a sharp edge around the periphery of ...
''
* ''
Discula testudinalis
''Discula testudinalis'' a species of small land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae.
Distribution
This species occurs in Portugal (Madeira
)
, anthem = ( en, "Anthem of the Autonomous Region of Madei ...
''
* ''
Discula tetrica
''Discula tetrica'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae.
This species is endemic to Bugio, Madeira, Portugal.
''Discula tetrica'' is listed as Critically endangered in t ...
''
synonyms:
* ''Discula bicarinata'' is a synonym for ''
Hystricella bicarinata
''Hystricella bicarinata'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae, the hairy snails and their allies. MolluscaBase eds. (2022). MolluscaBase. Hystricella bicarinata (G. B. S ...
'' (Sowerby, 1824)
* ''Discula echinulata'' is a synonym for ''
Hystricella echinulata
''Hystricella echinulata'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Geomitridae, the hairy snails and their allies. MolluscaBase eds. (2022). MolluscaBase. Hystricella echinulata (R. T. Lo ...
''
* ''Discula oxytropis'' is a synonym for ''
Hystricella oxytropis
''Wollastonaria oxytropis'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae, the hairy snails and their allies. MolluscaBase eds. (2022). MolluscaBase. Wollastonaria oxytropis (R. T. ...
''
* ''Discula turricula'' is a synonym for ''
Hystricella turricula
''Wollastonaria turricula'' is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae. MolluscaBase eds. (2022). MolluscaBase. Wollastonaria turricula (R. T. Lowe, 1831). Accessed throu ...
'' (R. T. Lowe, 1831)
Note
The name ''Discula'' is ambiguous and also refers to a genus of
fungi
A fungus (plural, : fungi or funguses) is any member of the group of Eukaryote, eukaryotic organisms that includes microorganisms such as yeasts and Mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified ...
in the family
Valsaceae
Valsaceae is a family of sac fungi in the Diaporthales order.
Genera
*'' Amphiporthe''
*'' Apioplagiostoma''
*'' Apioporthella''
*'' Chadefaudiomyces''
*'' Cryptascoma''
*'' Cytospora''
*'' Diaporthella''
*'' Ditopellina''
*'' Durispora ...
to which belongs the plant pathogen
dogwood
''Cornus'' is a genus of about 30–60 species of woody plants in the family Cornaceae, commonly known as dogwoods, which can generally be distinguished by their blossoms, berries, and distinctive bark. Most are deciduous trees or shru ...
anthracnose
A plant canker is a small area of dead tissue, which grows slowly, often over years. Some cankers are of only minor consequence, but others are ultimately lethal and therefore can have major economic implications for agriculture and horticultur ...
''
Discula destructiva
''Discula destructiva'' is a fungus in the family Gnomoniaceae which causes dogwood anthracnose, affecting populations of dogwood trees native to North America.
It was introduced to the United States in 1978 and is distributed throughout the E ...
''.
References
Further reading
*
*
External links
{{Geomitridae-stub