Euconulidae

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Euconulidae
Plegma caelatura juv Reunion 0410.jpg
A live juvenile of Plegma caelatura
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
clade limacoid clade
Superfamily: Gastrodontoidea
Family: Euconulidae
Baker, 1928
Subfamilies & Genera

See text

Euconulidae is a taxonomic family of minute, air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks. This land snail family is closely allied to the Zonitidae, the glass snails.

Distribution[edit]

The distribution of the Euconulidae includes the Nearctic, the western-Palearctic, the eastern-Palearctic, the Neotropical zone, the Ethiopian zone, Malagasy, south-eastern Asia, Australia, Polynesia and Hawaii.[1]

Shell description[edit]

These minute snails have a shell which is roundly conical and broad-based, like the shape of an old-fashioned European woven bee hive or skep. For this reason these snails are sometimes known as "hive snails".

The shells of most Euconulidae are only about 3 mm in size, amber-colored and translucent.

Anatomy[edit]

In this family, the number of haploid chromosomes lies between 26 and 30 (according to the values in this table).[2]

Genera[edit]

Subfamilies and genera in the family Euconulidae include:

Euconulinae

Microcystinae

subfamily ?

Cladogram[edit]

The following cladogram shows the phylogenic relationships of this family with the other families within the limacoid clade:[1]

 limacoid clade 
 Staffordioidea 

Staffordiidae




 Dyakioidea 

Dyakiidae


 Gastrodontoidea 

Pristilomatidae




Chronidae




Euconulidae



Trochomorphidae





Gastrodontidae



Oxychilidae







 Parmacelloidea 

Trigonochlamydidae



Parmacellidae



Milacidae





 Zonitoidea 

Zonitidae


 Helicarionoidea 

Helicarionidae




Ariophantidae



Urocyclidae





 Limacoidea 

Vitrinidae




Boettgerillidae




Limacidae



Agriolimacidae









References[edit]

  1. ^ a b Hausdorf B. (2000). "Biogeography of the Limacoidea sensu lato (Gastropoda: Stylommatophora): Vicariance Events and Long-Distance Dispersal". Journal of Biogeography 27(2): 379-390. doi:10.1046/j.1365-2699.2000.00403.x, JSTOR.
  2. ^ Barker G. M.: Gastropods on Land: Phylogeny, Diversity and Adaptive Morphology. in Barker G. M. (ed.): The biology of terrestrial molluscs. CABI Publishing, Oxon, UK, 2001, ISBN 0-85199-318-4. 1-146, cited pages: 139 and 142.
  3. ^ a b c Bouchet P. & Abdou A. (2001). "Recent Extinct Land Snails (Euconulidae) from the Gambier Islands with Remarkable Apertural Barriers". Pacific Science 55(2): 121-127. doi:10.1353/psc.2001.0011.
  4. ^ Plegma caelatura on iucnredlist.org

External links[edit]

Wikimedia Commons has media related to Euconulidae.