Discula is a genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of small land snail

Land snail

A land snail is any of the many species of snail that live on land, as opposed to those that live in salt water and fresh water. Land snails are terrestrial gastropod mollusks that have shells, It is not always an easy matter to say which species are terrestrial, because some are more or less...

s, terrestrial

Terrestrial animal

Terrestrial animals are animals that live predominantly or entirely on land , as compared with aquatic animals, which live predominantly or entirely in the water , or amphibians, which rely on a combination of aquatic and terrestrial habitats...

 pulmonate gastropod mollusks in the family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Hygromiidae

Hygromiidae

Hygromiidae is a taxonomic family of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.-Anatomy:...

, the hairy snails and their allies.

Shell description

The shell of these snails is shaped rather like a discus

Discus

Discus, "disk" in Latin, may refer to:* Discus , a progressive rock band from Indonesia* Discus , a fictional character from the Marvel Comics Universe and enemy of Luke Cage* Discus , a freshwater fish popular with aquarium keepers...

, or a lens

Lens (optics)

A lens is an optical device with perfect or approximate axial symmetry which transmits and refracts light, converging or diverging the beam. A simple lens consists of a single optical element...

, with a sharp edge around the periphery of the whorls.

Species

Species in the genus Discula include:

• Discula attrita
• Discula bulweri
  Discula bulweri
  Discula bulweri is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies.This species is endemic to Madeira, Portugal....
  
  
• Discula calcigena
• Discula cheiranthicola
  Discula cheiranthicola
  Discula cheiranthicola is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies.This species is endemic to Madeira, Portugal....
  
  
• Discula cockerelli
• Discula leacockiana
  Discula leacockiana
  Discula leacockiana is a species of small land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails.-Conservation status:This species of snail is mentioned in annexes II and IV of the Habitats Directive....
  
  
• Discula lyelliana
  Discula lyelliana
  Discula lyelliana is an extinct species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies....
  
  
• Discula polymorpha
• Discula pulvinata
• Discula rotula
  Discula rotula
  Discula rotula is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies.- Habitat :...
  
  
• Discula tabellata
  Discula tabellata
  Discula tabellata is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies.-Distribution:This species occurs in Madeira, Portugal.-Shell description:...
  
  
• Discula tectiformis
• Discula testudinalis
  Discula testudinalis
  Discula testudinalis a species of small land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies.-Shell description:...
  
  
• Discula tetrica
  Discula tetrica
  Discula tetrica is an extinct species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies.This species was endemic to Bugio, Madeira, Portugal....
  
  

synonyms:

• Discula bicarinata is a synonym for Hystricella bicarinata (Sowerby, 1824)
• Discula echinulata is a synonym for Hystricella echinulata
• Discula oxytropis is a synonym for Hystricella oxytropis
• Discula turricula is a synonym for Hystricella turricula (R. T. Lowe, 1831)

Note

The name Discula is ambiguous and also refers to a genus of fungi

Fungus

A fungus is a member of a large group of eukaryotic organisms that includes microorganisms such as yeasts and molds , as well as the more familiar mushrooms. These organisms are classified as a kingdom, Fungi, which is separate from plants, animals, and bacteria...

 in the family Valsaceae

Valsaceae

The Valsaceae are a family of sac fungi in the Diaporthales order....

 to which belongs the plant pathogen dogwood

Dogwood

The genus Cornus is a group of about 30-60 species of woody plants in the family Cornaceae, commonly known as dogwoods. Most dogwoods are deciduous trees or shrubs, but a few species are nearly herbaceous perennial subshrubs, and a few of the woody species are evergreen...

 anthracnose Discula destructiva

Discula destructiva

Discula destructiva is a fungus in the family Valsaceae which causes dogwood anthracnose, affecting populations of dogwood trees native to North America....

.