Euconulidae

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Euconulidae
TaylorEoconulusFulvus.jpg
Drawing of a live Euconulus fulvus and its shell
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Suborder: Helicina
Infraorder: Limacoidei
Superfamily: Trochomorphoidea
Family: Euconulidae
Baker, 1928
Genera

See text

Euconulidae is a taxonomic family of minute, air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the superfamily Trochomorphoidea. [1]

Contents

This land snail family is closely allied to the Zonitidae, the glass snails.

Taxonomy

The family Euconulidae was originally placed within the superfamily Gastrodontoidea according to the taxonomy of the Gastropoda (Bouchet & Rocroi, 2005). [2] Since 2017, its classification has been revised and it now belongs to the superfamily Trochomorphoidea [3]

Distribution

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. [4]

Humidity, temperature, rainfall, and foliar dripping derived from dew, mist, and rain, affect the behavior and substrate selection of small terrestrial molluscs, such as Tikoconus costarricanus, which inhabit shrubs in humid tropical montane forests. [5] There is also a preference of some parts of a leaf, [6] for example, in some cases the lower side is preferred, possibly because it has better humidity and protects small snails from the impact of raindrops. [7]

Shell description

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

In this family, the number of haploid chromosomes lies between 26 and 30 (according to the values in this table). [8]

Genera

Subfamilies and genera in the family Euconulidae include:

Euconulinae

Microcystinae

Cladogram

The following cladogram shows the phylogenic relationships of this family with the other families within the limacoid clade: [4]

  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

Related Research Articles

Stylommatophora Order of gastropods

Stylommatophora is an order of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This taxon includes most land snails and slugs.

Helicoidea Superfamily of gastropods

Helicoidea is a taxonomic superfamily of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Stylommatophora.

Gastrodontoidea Superfamily of gastropods

Gastrodontoidea is a taxonomic superfamily of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the limacoid clade.

Helicarionidae Family of gastropods

Helicarionidae is a family of air-breathing land snails or semi-slugs, terrestrial pulmonate gastropod mollusks in the superfamily Helicarionoidea.

Pupinidae Family of gastropods

Pupinidae is a taxonomic family of land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea.

Cepolidae (gastropod) Family of gastropods

Cepolidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.

Trochomorphidae Family of gastropods

Trochomorphidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Gastrodontoidea. Since 2017, its classification has been revised and it now belongs to the superfamily Trochomorphoidea

Spiraxidae Family of gastropods

Spiraxidae is a family of predatory air-breathing land snails, terrestrial pulmonate gastropods in the superfamily Testacelloidea.

Aillyidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the informal group Sigmurethra.

Micractaeon koptawelilensis is a species of land snail, terrestrial gastropod mollusks in the superfamily Achatinoidea.

Bothriembryontidae Family of gastropods

Bothriembryontidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Orthalicoidea.

Sigmurethra Informal group of gastropods

Sigmurethra is a taxonomic category of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This is an informal group which includes most land snails and slugs.

Orthurethra Clade of gastropods

Orthurethra is a clade of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Stylommatophora.

Elasmognatha Clade of gastropods

Elasmognatha is a taxonomic grouping, a clade, of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs.

Limacoidei Group of molluscs

The Limacoidei is a taxonomic infraorder of air-breathing land snails, semislugs and slugs, terrestrial pulmonate gastropod molluscs in the suborder Helicina

Testacelloidea Superfamily of gastropods

The Testacelloidea are a superfamily of air-breathing land snails and slugs, terrestrial gastropod mollusks in the suborder Helicina of the order Stylommatophora.

Achatinoidea Superfamily of gastropods

The Achatinoidea are a superfamily of air-breathing land snails and slugs, terrestrial gastropod mollusks in the informal group Sigmurethra.

Orthalicoidea Superfamily of gastropods

The Orthalicoidea are a superfamily of air-breathing land snails, terrestrial gastropod mollusks in the infraorder Orthalicoidei of the suborder Helicina

<i>Prestonella bowkeri</i> Species of gastropod

Prestonella bowkeri is a species of air-breathing land snail, terrestrial pulmonate gastropod molluscs in the family Bothriembryontidae.

Xanthonychoidea Superfamily of gastropods

Xanthonychoidea is a taxonomic superfamily of air-breathing land snails, land slugs and semi-slugs, terrestrial pulmonate gastropod mollusks in the clade Stylommatophora.

References

  1. "Trochomorphoidea Möllendorff, 1890". WoRMS.
  2. 1 2 Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia . Hackenheim, Germany: ConchBooks. 47 (1–2): 1–397. ISBN   3-925919-72-4. ISSN   0076-2997.
  3. Bouchet P., Rocroi J.P., Hausdorf B., Kaim A., Kano Y., Nützel A., Parkhaev P., Schrödl M. & Strong E.E. (2017). Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia. 61(1-2): 1-526
  4. 1 2 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.
  5. Barrientos, Z. (2020). Microhabitat selection, and seasonal and daily activity of the snail Tikoconus costarricanus (Stylommatophora: Euconulidae) in tropical montane wet forest understory. Revista de Biología Tropical, 68(4), 1131-1142
  6. Hernández-Quinta, M. (2013). Occupancy of strata of plant height and plant substrate by land snail (Gastropoda) assemblages at Escaleras de Jaruco, Mayabeque, Cuba. The Nautilus, 127(1), 29-35.
  7. Moreno-Rueda, G., Ruiz-Ruiz, A., Collantes-Martín, E., & Arrébola, J.R. (2009). Relative importance of humidity and temperature on microhabitat use by land snails in arid versus humid environments. In A. Fernández-Bernal & M.A. De la Rosa (Eds.), Arid Environments and Wind Erosion (pp 331-343). Uni- ted Kingdom: Nova Science Publishers.
  8. 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.
  9. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 MolluscaBase (2018). Euconulinae H.B. Baker, 1928. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=994926 on 2018-09-14
  10. "Molluscabase - Euconulinae H. B. Baker, 1928". www.molluscabase.org. Retrieved 2022-01-19.
  11. 1 2 3 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.