Gulella 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 very small 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 family Streptaxidae

Streptaxidae

Streptaxidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in theStylommatophora. Six Streptaxidae subfamilies are accepted in the 2005 taxonomy of the Gastropoda by Bouchet & Rocroi....

.

Until recently, species which are now in the genus Costigulella were included here.

Distribution

Distribution of the genus include:

• Afrotropical: Uganda (20 species)
• Arabia
• Madagascar
• Comoros
  Comoros
  The Comoros , officially the Union of the Comoros is an archipelago island nation in the Indian Ocean, located off the eastern coast of Africa, on the northern end of the Mozambique Channel, between northeastern Mozambique and northwestern Madagascar...
  
  
• the Seychelles
• Mauritius

Species

Species within the genus Gullela include:

subgenus Avakubia Pilsbry, 1919

• Gulella avakubiensis Pilsbry, 1919

subgenus Conogulella Pilsbry, 1919

• Gulella conospira (Martens, 1892)

subgenus Gulella Pfeiffer, 1856

• Gulella laevigata (Dohrn, 1865)
• Gulella mikenoensis (Preston, 1913)

subgenus Molarella Connolly, 1922

• Gulella malasangiensis (Preston, 1913)
• Gulella ugandensis (E. A. Smith, 1901)

subgenus Paucidentina Martens, 1897

• Gulella brevis (Thiele, 1911)
• Gulella masisiensis Pilsbry, 1919

subgenus Plicigulella Pilsbry, 1919

• Gulella vicina adelpha (Preston, 1913)

subgenus Primigulella Pilsbry, 1919

• Gulella linguifera (Martens, 1895)

subgenus Pupigulella Pilsbry, 1919

• Gulella pupa (Thiele, 1911)

subgenus Silvigulella Pilsbry, 1919

• Gulella kuiperi de Winter, 2007
• Gulella osborni Pilsbry, 1919

subgenus Tortigulella Pilsbry, 1919

• Gulella cara Pilsbry, 1919
• Gulella heteromphala Pilsbry, 1919
• Gulella lessensis Pilsbry, 1919
• Gulella obani Oke, 2007

subgenus Wilmattina Pilsbry & Cockerell, 1933

• Gulella disseminata (Preston, 1913)

subgenus ?

• Gulella alleni
  Gulella alleni
  Gulella alleni is a species of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae. This species is endemic to Tanzania.- References :* Tattersfield, P. 1996. . Downloaded on 7 August 2007....
  
  
• Gulella amaniensis
  Gulella amaniensis
  Gulella amaniensis is a species of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae. This species is endemic to Tanzania.- References :...
  
  
• Gulella ambodipelomosiae Emberton, 2002
• Gulella amboniensis
  Gulella amboniensis
  Gulella amboniensis is a species of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae....
  
  
• Gulella andriantanteliae
• Gulella antelmeana
  Gulella antelmeana
  Gulella antelmeana is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae. This species is endemic to Mauritius....
  
  
• Gulella aprosdoketa
  Gulella aprosdoketa
  Gulella aprosdoketa is a species of very small air-breathing land snail, terrestrial pulmonate gastropod mollusk in the family Streptaxidae....
  
  
• Gulella beandreana Emberton, 2001
• Gulella betamponae Emberton, 2002
• Gulella bomolensis
  Gulella bomolensis
  Gulella bomolensis is a species of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae.This species is endemic to Tanzania.- References :...
  
  
  • Gulella caryatis diabensis Connolly, 1939
• Gulella caryatis (Melvill & Ponsonby, 1898)
• Gulella claustralis
  Gulella claustralis
  Gulella claustralis is a species of very small air-breathing land snail, terrestrial pulmonate gastropod mollusk in the family Streptaxidae....
  
  
• Gulella cuspidata
  Gulella cuspidata
  Gulella cuspidata is a species of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae.This species is endemic to Tanzania....
  
  
• Gulella decussatula (Preston, 1913)
• Gulella deviae Herbert, 2006
• Gulella foliifera
  Gulella foliifera
  Gulella foliifera is a species of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae.This species is endemic to Tanzania.-References:* Tattersfield, P. 1996. . Downloaded on 7 August 2007....
  
  
• Gulella fraudator Connolly, 1939
• Gulella greenwayi
  Gulella greenwayi
  Gulella greenwayi is a species of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae.This species is endemic to Tanzania.-References:* Tattersfield, P. 1996. . Downloaded on 7 August 2007....
  
  
• Gulella grossa
  Gulella grossa
  Gulella grossa is a species of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae.This species is endemic to Tanzania.-References:* Tattersfield, P. 1996. . Downloaded on 7 August 2007....
  
  
• Gulella inconspicua
  Gulella inconspicua
  Gulella inconspicua is a species of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae.This species is endemic to Tanzania.-References:...
  
  
• Gulella intrusa
  Gulella intrusa
  Gulella intrusa is a species of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae.This species is endemic to Tanzania.-References:* Tattersfield, P. 1996. . Downloaded on 7 August 2007....
  
  
• Gulella io
  Gulella io
  Gulella io is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae.- Distribution :The non-indigenous distribution of this species includes:* The Czech Republic as a "hothouse alien"...
  
  
• Gulella kelimolotra Emberton, 2002
• Gulella kendrae Emberton & Griffiths, 2009
• Gulella laninifia Emberton, 2002
• Gulella lincolni Emberton & Griffiths, 2009
• Gulella lindae Herbert, 2006
• Gulella ludwigi
  Gulella ludwigi
  Gulella ludwigi is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae. This species is endemic to Tanzania.-References:* Tattersfield, P. 1996. . Downloaded on 7 August 2007....
  
  
• Gulella matavymolotra Emberton, 2002
• Gulella mayottensis
  Gulella mayottensis
  Gulella mayottensis was a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae. This species was endemic to Mayotte....
  
  
• Gulella minuseula Emberton & Pearce, 2000
• Gulella ndamanyiluensis
  Gulella ndamanyiluensis
  Gulella ndamanyiluensis is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae. This species is endemic to Tanzania.-References:...
  
  
• Gulella paucidens
  Gulella paucidens
  Gulella paucidens is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae. This species is endemic to Tanzania.-References:* Tattersfield, P. 1996. . Downloaded on 7 August 2007....
  
  
• Gulella plantii - Plant's gulella snail
  Plant's gulella snail
  Plant's gulella snail, scientific name Gulella plantii, is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae. This species is endemic to South Africa....
  
  
• Gulella puzeyi
  Gulella puzeyi
  Gulella puzeyi is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae....
  
  
• Gulella ruthae Emberton, 2002
• Gulella ruwenzoriensis van Bruggen & van Goethem, 1999
• Gulella sahia Emberton, 2002
• Gulella salpinx
  Gulella salpinx
  Gulella salpinx, common name Trumpet-mouthed hunter snail, is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae....
  
  Herbert, 2002
• Gulella selene van Bruggen & van Goethem, 1999
• Gulella soulaiana Fischer-Piette, 1973
• Gulella streptostelopsis
  Gulella streptostelopsis
  Gulella streptostelopsis is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae....
  
  Bruggen
  Adolph Cornelis van Bruggen
  Adolph Cornelis van Bruggen, also known as A. C. van Bruggen or Dolf van Bruggen is a malacologist, entomologist and botanist from the Netherlands. His interest in the tropics and tropical Africa has dominated his broad scientific interest for more than 50 years now...
  
  , 2007
• Gulella systemanaturae
  Gulella systemanaturae
  Gulella systemanaturae is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae....
  
  Bruggen, 2008
• Gulella taitensis
  Gulella taitensis
  Gulella taitensis is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae....
  
  
• Gulella taolantehezana Emberton, 2002
• Gulella thompsoni
• Gulella translucida
  Gulella translucida
  Gulella translucida is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae.This species is endemic to Tanzania.-References:...
  
  
• Gulella unidentata
  Gulella unidentata
  Gulella unidentata is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae.This species is endemic to Tanzania.-References:* Tattersfield, P. 1996. . Downloaded on 7 August 2007....
  
  
• Gulella usambarica
  Gulella usambarica
  Gulella usambarica is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Streptaxidae.This species is endemic to Tanzania.-References:* Tattersfield, P. 1996. . Downloaded on 7 August 2007....
  
  
• Gulella virungae van Bruggen & van Goethem, 1999
• Gulella sp. 1 sensu Emberton & Griffiths (2009)
• Gulella sp. 2 sensu Emberton & Griffiths (2009)
• Gulella sp. 3 sensu Emberton & Griffiths (2009)

synonyms:

• Gulella thomasseti is a synonym for Glabrennea thomasseti (Sykes, 1909)

Further reading

• Burnup H. C. (1925). "On some South African Gulellae, with descriptions of new species and varieties. Part 1." Annals of the Natal Museum 5: 101-158; pls. 8-9.
• Verdcourt B. (1985). "New taxa of Gulella L. Pfr. and Ptychotrema
  Ptychotrema
  Ptychotrema is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae.Ptychotrema is the type genus of the subfamily Ptychotrematinae.- Distribution :...
  
  Mörch (Mollusca, Streptaxidae) from Eastern Africa". Journal of Conchology 32(1): 109-122. abstract.