Spiraxidae
Encyclopedia
Spiraxidae 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 gastropods 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...

).

2005 taxonomy

The Spiraxidae 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 Spiraxidae consists of the following subfamilies:
  • Spiraxinae H. B. Baker, 1939
  • Micromeninae Schileyko, 2000

2010 taxonomy

Thompson (2010) have redefined subfamilies in Spiraxidae and have moved Euglandininae and Streptostylinae as subfamilies of Spiraxidae. There are three subfamilies within Spiraxidae:
  • Spiraxinae H. B. Baker, 1939 - including Micromena
  • Euglandininae H. B. Baker, 1941
  • Streptostylinae H. B. Baker, 1941


Apparently, this is not universally accepted, as Fauna Europaea states another systematics for the Euglandininae subfamily, still placing it among the Oleacinidae family .

Genera

Genera in the family Spiraxidae include:

subfamily Spiraxinae include seven genera:
  • Mayaxis
    Mayaxis
    Mayaxis is a genus of land snails in the family Spiraxidae....

    Thompson, 1995
  • Micromena
    Micromena
    Micromena is a genus of land snails in the family Spiraxidae....

    H. B. Baker, 1939 - it was the type genus of subfamily Micromeninae
  • Miraradula
    Miraradula
    Miraradula is a genus of land snails in the family Spiraxidae....

    Baker, 1939
  • Pseudosubulina
    Pseudosubulina
    Pseudosubulina is a genus of land snails in the family Spiraxidae....

    Strebel & Pfeffer, 1882
  • Rectaxis
    Rectaxis
    Rectaxis is a genus of land snails in the family Spiraxidae.- Distribution :Distribution of the genus Rectaxis include area from Venezuela to Mexico.- Species :Species in the genus Rectaxis include:...

    Baker, 1926
  • Spiraxis
    Spiraxis
    Spiraxis is a genus of land snails in the family Spiraxidae.Spiraxis is the type genus of family Spiraxidae....

    C. B. Adams, 1850 - type genus of family Spiraxidae
  • Volutaxis
    Volutaxis
    Volutaxis is a genus of land snails in the family Spiraxidae.- Distribution :Distribution of the genus Volutaxis include Mexico, Central America and the Greater Antilles.- Species :...

    Strebel & Pfeffer, 1882


subfamily Euglandininae
  • Euglandina
    Euglandina
    Euglandina is a genus of medium- to large-sized land snails in the family Spiraxidae.These snails were previously placed in the family Oleacinidae , Spiraxidae and also in Streptaxidae.Euglandina is the type genus of the subfamily Euglandininae...

    Crosse & P. Fischer, 1870 - type genus of the subfamily Euglandininae
  • Guillarmodia
    Guillarmodia
    Guillarmodia is a genus of land snails in the family Spiraxidae.- Distribution :Distribution of the genus Guillarmodia include Mexico and Costa Rica.- Species :Species in the genus Guillarmodia include:subgenus Guillarmodia H. B...

    H. B. Baker, 1941
  • Pittieria
    Pittieria
    Pittieria is a genus of land snails in the family Spiraxidae.- Distribution :The distribution of the genus Pittieria extends from Central Mexico to northern Panama.- Species :Species in the genus Pittieria include:...

    von Martens, 1901
  • Poiretia
    Poiretia (gastropod)
    Poiretia is a genus of land snails in the family Spiraxidae.- Distribution :Distribution of the genus Poiretia include area from Algeria and Italy to Caucasus.- Species :Species within the genus Poiretia include:...

    Fischer, 1883
  • Varicoglandina
    Varicoglandina
    Varicoglandina is a genus of land snails in the family Spiraxidae.- Distribution :Distribution of the genus Varicoglandina include Mexico and Guatemala.- Species :There are five species in the genus Varicoglandina and they include:...

    Pilsbry, 1908
  • Varicoturris
    Varicoturris
    Varicoturris is a genus of land snails in the family Spiraxidae.- Distribution :Distribution of the genus Varicoturris include Mexico and Guatemala.- Species :...

    Pilsbry, 1907


subfamily Streptostylinae
  • Myxastyla
    Myxastyla
    Myxastyla is a genus of land snails in the family Spiraxidae....

    Thompson, 1995
  • Oryzosoma
    Oryzosoma
    Oryzosoma is a genus of land snails in the family Spiraxidae....

    Pilsbry, 1891
  • Salasiella
    Salasiella
    Salasiella is a genus of land snails in the family Spiraxidae....

    Strebel, 1877
  • Strebelia
    Strebelia
    Strebelia is a genus of land snails in the family Spiraxidae....

    Crosse & Fischer, 1868
  • Streptostyla
    Streptostyla
    Streptostyla is a genus of predatory, air-breathing, land snails. They are terrestrial gastropod mollusks in the family Spiraxidae.Streptostyla is the type genus of the subfamily Streptostylinae.- Distribution :...

    Shuttleworth, 1852 - type genus of the subfamily Streptostylinae
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