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词条 Trissexodontidae
释义

  1. Distribution

  2. Genera

  3. Description

  4. References

  5. External links

{{Taxobox
| image = Trissexodon constrictus shell.png
| image_caption = Apertural view of the shell of Trissexodon constrictus. Scale is in mm. A regularly ribbed shell is one of the characteristics of this family.
| regnum = Animalia
| phylum = Mollusca
| classis = Gastropoda
| unranked_superfamilia = clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
| superfamilia = Helicoidea
| familia = Trissexodontidae
| familia_authority = H. Nordsieck, 1987[1]
| type_genus = Trissexodon
| subdivision_ranks = Genera
| subdivision = See text
| synonyms_ref = [2]
| synonyms =
  • Caracollinini H. Nordsieck, 1987
  • Oestophorini H. Nordsieck, 1987
  • Mastigophallini Schileyko, 1991[2]
  • Gittenbergeriinae Schileyko, 1991

}}

Trissexodontidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

This family has no subfamilies.[3] The family Trissexodontidae was separated out from the families Hygromiidae and Helicodontidae,[3] and some authors still classify these species within those families.

Distribution

The distribution of Trissexodontidae includes the Iberian peninsula, northwest Africa,[6] Azores,[4] Canary Islands, Madeira and Cape Verde.[5]

Genera

Genera within the family Trissexodontidae include:

  • Caracollina Beck, 1837[6]
  • Gasullia Ortiz de Zárate López, 1962[6]
  • Gasulliella Gittenberger, 1980[6] - with only one species, Gasulliella simplicula (Morelet, 1845)
  • Gittenbergeria Schileyko, 1991[6]
  • Mastigophallus Hesse, 1918[6] - with only one species, Mastigophallus rangianus (Michaud, 1831)
  • Oestophora Hesse, 1907[6]
  • Oestophorella Pfeffere, 1929[6]
  • Trissexodon Pilsbry, 1895[6] - type genus of the family Trissexodontidae
  • Spirorbula Lowe, 1852 - probable classification,[6] from Madeira and Porto Sancto[7]
  • Suboestophora Ortiz de Zárate López, 1962[8]

Description

Shells of species in the family Trissexodontidae are flat and regularly ribbed. The periostracum of the shell surface has no hairs.[6]

A description of the reproductive system was summarized by Prieto et al. (1993).[6]

In this family, the number of haploid chromosomes is known only for the genus Oestophora (n=30).[6]

References

1. ^{{de icon}} Nordsieck H. (1987). "Revision des Systems der Helicoidea (Gastropoda: Stylommatophora)". Archiv für Molluskenkunde 118(1-3): 9-50. page 30.
2. ^Schileyko A. A. (1991). "Taxonomic status, phylogenetic relations and system of the Helicoidea sensu lato (Pulmonata)". Archiv für Molluskenkunde 120(4-6): 187-236. page 225.
3. ^{{Bouchet 2005}}
4. ^"Genus summary for Oestophora". AnimalBase, last modified 17 July 2008, accessed 13 January 2011.
5. ^"Genus summary for Caracollina". AnimalBase, last modified 17 August 2007, accessed 13 January 2011.
6. ^10 11 12 Prieto C. E., Puente A. I, Altonaga K. & Gomez J. (1993). "Genital morphology of Caracolina lenticula (Michaud, 1831), with a new proposal of classification of helicodontoid genera (Pulmonata: Hygromioidea)". Malacologia 35(1): [https://archive.org/stream/malacologia351993inst#page/62/mode/2up 63]-77. [https://archive.org/stream/malacologia351993inst#page/73/mode/1up page 73]-74.
7. ^"Genus taxon summary for Spirorbula". AnimalBase, last modified 09 September 2008, accessed 13 January 2011.
8. ^"Suboestophora Ortiz de Zarate Lopez 1962". Fauna Europaea, accessed 13 January 2011.
9. ^Nordsieck H. (1993). "Das System der paläarktischen Hygromiidae (Gastropoda: Stylommatophora: Helicoidea)". Archiv für Molluskenkunde 122: 1-23.

External links

{{Commons category|Trissexodontidae}}
  • Nordsieck H. [https://web.archive.org/web/20120314225859/http://www.hnords.de/5356429d6b117f602/index.html "Higher classification of Helicoidea (Gastropoda: Stylommatophora) and the molecular analyses of their phylogeny"].
{{Taxonbar|from=Q7844074}}

1 : Trissexodontidae

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