Trigonochlamydidae

Trigonochlamydidae is a family of air-breathing land slugs, terrestrial gastropod molluscs in the clade Eupulmonata (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

Trigonochlamydidae
Temporal range: Recent[1]
Ghost slug, Selenochlamys ysbryda
Scientific classification
Kingdom:
Phylum:
Class:
(unranked):
Superfamily:
Family:
Trigonochlamydidae

Hesse, 1882
Diversity
9 genera, 11 species

Distribution

The native distribution of Trigonochlamydidae includes Caucasus,[1] Iran and Turkey.[2]

Taxonomy

Previously, Trigonochlamydidae was placed in the superfamily Trigonochlamydoidea Hesse, 1882, in the subinfraorder Sigmurethra. This was the only family within that superfamily.[3]

The family Trigonochlamydidae is now classified within the limacoid clade, which itself belongs to the clade Stylommatophora, within the clade Eupulmonata (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

The following two subfamilies have been recognized in the taxonomy of Bouchet & Rocroi (2005):

  • subfamily Trigonochlamydinae Hesse, 1882 - synonyms: Selenochlamydinae I. M. Likharev & Wiktor, 1980
  • subfamily Parmacellillinae Hesse, 1926[4]

Genera

There are nine[2] genera in the family Trigonochlamydidae with a total of 11 species:

Subfamily Trigonochlamydinae

Subfamily Parmacellillinae

Synonym:

  • Pseudomilax O. Boettger, 1881 is a synonym for various genera in Trigonochlamydidae.

Selenochlamys O. Boettger, 1883 has been removed from the Trigonochlamydidae to the Oxychilidae based on DNA evidence.[7]

Cladogram

The following cladogram shows the phylogenic relationships of this family with the other families in the limacoid clade:[8]

 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

  1. "Family summary for Trigonochlamydidae". AnimalBase, last modified 26 August 2005, accessed 1 September 2010.
  2. Suvorov A. N. (2003). "A new species and genus of carnivorous slugs (Pulmonata Trigonochlamydidae) from West Transcaucasia". Ruthenica 13: 149-152. abstract.
  3. Sistemica (Spanish list of genera), cited 7 October 2008.
  4. Hesse P. (1926). "Die Nacktschnecken der palearktischen Region". Abhandlungen des Archiv für Molluskenkunde 2(1): 1-152. page 47 and page 54. plates 1-2.
  5. Kantor Yu I., Vinarski M. V., Schileyko A. A. & Sysoev A. V.(published online on December 22, 2009). "Catalogue of the continental mollusks of Russia and adjacent territories". Version 2.3.
  6. Schileyko A. A. (2003). "Treatise on Recent Terrestrial Pulmonate Molluscs. Part 11. Trigonochlamydidae, Papillodermidae, Vitrinidae, Limacidae, Bielziidae, Agriolimacidae, Boettgerillidae, Camaenidae." Ruthenica, Supplement 2(11): 1467-1626, Moscow. page 1467.
  7. Neiber, Marco T.; Walther, Frank; Hausdorf, Bernhard (October 2020). "Phylogenetic relationships of ghost slugs (Selenochlamys) and overlooked instances of limacization in Western Palaearctic Limacoidei (Gastropoda: Stylommatophora)". Molecular Phylogenetics and Evolution. 151: 106897. doi:10.1016/j.ympev.2020.106897.
  8. Hausdorf B. (March 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.
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