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Lycognathophis seychellensis (SCHLEGEL, 1837)

IUCN Red List - Lycognathophis seychellensis - Endangered, EN
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Higher TaxaColubridae (Natricinae ?), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Seychelles Wolf Snake
G: Seychellen-Wolfsschlange 
SynonymPsammophis seychellensis SCHLEGEL 1837: 212
Scopelophis seychellensis — FITZINGER 1843
Tropidonotus seychellensis — DUMÉRIL 1853
Tropidonotus seychellensis — DUMÉRIL, BIBRON & DUMÉRIL 1854: 588
Thrasops citrinus COPE 1868: 322
Thrasops citrinus COPE 1893
Lycognathophis seychellensis — BOULENGER 1893: 317
Lycognatophis [sic] seychellensis — HOESCH 1982
Scopelophis seychellensis — DOWLING 1990
Lycognathophis seychellensis — MATTISON 1995: 93
Lycognathophis seychellensis — MATTISON 2007: 95
Lycognathophis seychellensis — WALLACH et al. 2014: 408 
DistributionSeychelles (endemic)

Type locality: "les îles Seychelles." [=Seychelles Islands, Indian Ocean, 4˚35'S, 55˚40'E].  
Reproductionoviparous 
TypesSyntypes: MNHN-RA 3509, a 670 mm specimen (Péron), and MNHN-RA 7408, a 1040 mm male (Dussumier)
Holotype: ANSP 5206; Seychelle Islands [Thrasops citrinus] 
DiagnosisAdditional details, e.g. a detailed description or comparisons (1223 characters), are available for collaborators and contributors. Please contact us for details. 
CommentNomenclature: The name Scopelophis has been suppressed by the ICZN in 1996 (Bulletin of Zoological Nomenclature 53 (3): 226-227).

Type species: Psammophis seychellensis SCHLEGEL 1837 is the type species of the genus Lycognathophis BOULENGER 1893.

Phylogenetics: for a phylogenetic analysis of Sub-saharan Natricine genera see Deepak et al. 2021. The closest relatives of the genus are a clade of African Natricinae, which is why we add them to this subfamily but it is possible to assign it to its own subfamily. 
EtymologyNamed after the type locality. 
References
  • Boulenger, G.A. 1893. Catalogue of the snakes in the British Museum (Nat. Hist.) I. London (Taylor & Francis), 448 pp. - get paper here
  • Deepak, V, Simon T Maddock, Rhiannon Williams, Zoltán T Nagy, Werner Conradie, Sara Rocha, D James Harris, et al. 2021. Molecular Phylogenetics of Sub-Saharan African Natricine Snakes, and the Biogeographic Origins of the Seychelles Endemic Lycognathophis seychellensis. Molecular Phylogenetics and Evolution 161: 107152 - get paper here
  • Dowling,H.G. 1990. Taxonomic status and relationships of the genus Lycognathophis. Herpetologica 46 (1): 60-66 - get paper here
  • Dubey, Bhawna; P. R. Meganathan, Nicolas Vidal, and Ikramul Haque 2012. Molecular Evidence for the Nonmonophyly of the Asian Natricid Genus Xenochrophis (Serpentes, Colubroidea) as Inferred from Mitochondrial and Nuclear Genes. Journal of Herpetology 46 (2): 263-268. - get paper here
  • Guibé, J. & Roux-Estève, R. 1972. Les types de Schlegel (Ophidiens) présents dans les collections du Muséum National d'Histoire Naturelle de Paris. Zoologische Mededelingen 47: 129-134 - get paper here
  • Hoesch, U. 1982. Herpetologische Beobachtungen auf den Seychellen. Herpetofauna 4 (17): 31-33 - get paper here
  • Krüger, B. 2018. Herpetologische Eindrücke von den Seychellen. Reptilia 23 (133): 72-78 - get paper here
  • Kwet, A. 2023. „Wolfskieferschlangen“ auf den Seychellen. Elaphe 2024 (1): 9
  • Mattison, Chris 1995. The Encyclopedia of Snakes. New York: Facts on File, 256 pp.
  • Mattison, Chris 2007. The New Encyclopedia of Snakes. Princeton University Press
  • O’Shea, M. 2018. The Book of Snakes. Ivy Press / Quarto Publishing, London, - get paper here
  • PAWLOWSKI, S. 2013. Herpetologie des Morne Seychellois National Park auf Mahé, Seychellen. Sauria 35 (3): 33-40 - get paper here
  • PAWLOWSKI, S. 2016. Herpetological impressions from Aride Island, Seychelles. Sauria 38 (1): 48-53 - get paper here
  • PAWLOWSKI, S. 2016. Notes on the Seychelles House Snake, Lamprophis geometricus (SCHLEGEL, 1837), and the Seychelles Wolf Snake, Lycognathophis seychellensis (SCHLEGEL, 1837), on the Inner Seychelles islands. Sauria 38 (2): 26 - 34 - get paper here
  • PAWLOWSKI, S. 2019. Die Herpetologie von Aride Island, Seychellen Elaphe 2019 (5): 48-55
  • Pawlowski, S. & Krämer, C. 2009. Zur Herpetologie des Vallée de Mai auf Praslin, Seychellen. Sauria 30 (4): 19-27 [2008] - get paper here
  • Schlegel, H. 1837. Essai sur la physionomie des serpens. Partie Descriptive. La Haye (J. Kips, J. HZ. et W. P. van Stockum), 606 S. + xvi - get paper here
  • Smith, H. M.; Wallach, V. 1994. Lycognathophis Boulenger, 1893 (Reptilia, Serpentes): proposed conservation. Bull. Zool. Nomenclature 51 (4): 330 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
 
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