Oleacinidae is a 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...

 of air-breathing 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 clade

Clade

A clade is a group consisting of a species and all its descendants. In the terms of biological systematics, a clade is a single "branch" on the "tree of life". The idea that such a "natural group" of organisms should be grouped together and given a taxonomic name is central to biological...

 Eupulmonata

Eupulmonata

The Eupulmonata is a taxonomic clade of air-breathing snails. The great majority of this group are land snails and slugs, but some are marine and some are saltmarsh snails that can tolerate salty conditions.-Linnean taxonomy:...

 (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005

Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005)

The taxonomy of the Gastropoda as it was revised by Philippe Bouchet and Jean-Pierre Rocroi is currently the most up-to-date overall system for classifying gastropod mollusks...

).

Anatomy

In this family, the number of haploid chromosome

Chromosome

A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions.Chromosomes...

s lies between 26 and 30 (according to the values in this table).

2005 taxonomy

The Oleacinidae family is classified within the informal group Sigmurethra

Sigmurethra

Sigmurethra is a taxonomic category of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This is an Informal Group which includes the majority of land snails and slugs....

, itself belonging to the clade

Clade

A clade is a group consisting of a species and all its descendants. In the terms of biological systematics, a clade is a single "branch" on the "tree of life". The idea that such a "natural group" of organisms should be grouped together and given a taxonomic name is central to biological...

 Stylommatophora

Stylommatophora

Stylommatophora is a taxon of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This taxon is currently considered to be a clade. It was previously regarded as an infraorder...

 within the clade Eupulmonata

Eupulmonata

The Eupulmonata is a taxonomic clade of air-breathing snails. The great majority of this group are land snails and slugs, but some are marine and some are saltmarsh snails that can tolerate salty conditions.-Linnean taxonomy:...

 (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005

Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005)

The taxonomy of the Gastropoda as it was revised by Philippe Bouchet and Jean-Pierre Rocroi is currently the most up-to-date overall system for classifying gastropod mollusks...

).

The family Oleacinidae consists of the following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005

Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005)

The taxonomy of the Gastropoda as it was revised by Philippe Bouchet and Jean-Pierre Rocroi is currently the most up-to-date overall system for classifying gastropod mollusks...

):

• Oleacininae H. Adams
  Henry Adams (zoologist)
  Henry Adams was an English naturalist and conchologist.With his brother Arthur Adams, also a noted conchologist, he wrote three volumes, 1858.-References:...
  
   & A. Adams
  Arthur Adams (zoologist)
  Arthur Adams was an English physician and naturalist.Adams was assistant surgeon on board H.M.S. "Actaeon" in company with HMS Samarang in the British Navy during the survey of the Malay Archipelago, the Japan Sea, Korea and China,from 1843 to 1846. He edited the Zoology of the voyage of H.M.S....
  
  , 1855 - synonyms: Polyphemidae Gistel, 1868 (inv.); Glandinidae Bourguignat, 1877; Streptostylini H. B. Baker, 1941
• Euglandininae H. B. Baker, 1941
• Varicellinae H. B. Baker, 1941

2010 taxonomy

Thompson (2010) have redefined subfamilies in Spiraxidae

Spiraxidae

Spiraxidae is a family of air-breathing land snails, terrestrial pulmonate gastropods in the clade Eupulmonata .- 2005 taxonomy :...

 and have moved Euglandininae and Streptostylinae as subfamilies of Spiraxidae.

Genera

Genera in the family Oleacinidae include:

subfamily Oleacininae

• Oleacina
  Oleacina
  Oleacina is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Oleacinidae.Oleacina is the type genus of the family Oleacinidae.-Species:Species within the genus Oleacina include:...
  
  Röding, 1798 - type genus
  Type genus
  In biological classification, a type genus is a representative genus, as with regard to a biological family. The term and concept is used much more often and much more formally in zoology than it is in botany, and the definition is dependent on the nomenclatural Code that applies:* In zoological...
  
   of the family Oleacinidae
• Palaeoglandina Wenz, 1914
• Pseudoleacina Wenz, 1914

subfamily Varicellinae

• Varicella L. Pfeiffer, 1854 - type genus of the subfamily Varicellinae
• Glandinella L. Pfeiffer, 1878
• Laevaricella
  Laevaricella
  Laevaricella is a genus of tropical, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Oleacinidae.- Species :Species within the genus Laevaricella include:* Laevaricella glabra...
  
  Pilsbry, 1907
• Melaniella L. Pfeiffer, 1857
• Sigmataxis Pilsbry, 1907