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Xenophidion

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Xenophidion is a genus of snakes first described in 1995, and the only genus of the monotypic family Xenophidiidae. Commonly referred to as spinejaw snakes, this genus is found in Borneo and peninsular Malaysia.

Species

GENUS

  1. KingdomAnimalia
  2. PhylumChordata
  3. ClassSquamata
  4. FamilyXenophidiidae
Observations recorded8

Xenophidion er en lite kjent slekt av slanger som er utbredt i Malaysia. De ble først vitenskapelig beskrevet i 1995, og ble da regnet som snoker.[1] De ble deretter plassert i familien Tropidophiidae sammen med dvergboaene, men regnes nå til en egen familie, Xenophidiidae.[2] En molekylærgenetisk studie tyder på at bolyeriaslanger er de nærmeste slektningene.[3] Arter Hver av de to artene er bare kjent fra ett eksemplar med følgende funnsted: Xenophidion acanthognathus – Sabah på Borneo Xenophidion schaeferi – Selangor på Malakkahalvøya Referanser ^ R. Günther og U. Manthey (1995). «Xenophidion, a new genus with two new species of snakes from Malaysia (Serpentes, Colubridae)». Amphibia-Reptilia. 16 (3): 229–240. ISSN 1568-5381. doi:10.1163/156853895X00028. ^ V. Wallach og R. Günther (1998). «Visceral anatomy of the Malaysian snake genus Xenophidion, including a cladistic analysis and allocation to a new family (Serpentes: Xenophidiidae)». Amphibia-Reptilia. 19 (4): 385–405. ISSN 1568-5381. doi:10.1163/156853898X00052. ^ R. Lawson, J.B. Slowinski og F.T. Burbrink (2004). «A molecular approach to discerning the phylogenetic placement of the enigmatic snake Xenophidion schaeferi amon

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Wikidata facts

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taxon
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taxon name
Xenophidion
taxon rank
genus
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Category:Xenophidion
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Encyclopedic overview

4 sections
Contents
  • Morphology and classification
  • Diet, reproduction, and habitat
  • Species
  • References

Xenophidion is a genus of snakes first described in 1995, and the only genus of the monotypic family Xenophidiidae. Commonly referred to as spinejaw snakes, this genus is found in Borneo and peninsular Malaysia.

==Morphology and classification== This genus is taxonomically and phylogenetically challenging to classify, as these snakes possess several morphological traits that distinguish them from all other snake species; head scales with numerous sensory papillae, large prefrontal scales, and an upper jaw that has a spiny palatine process. They also lack any pelvic girdle vestiges, a left lung, or a coronoid bone. In 2004, cytochrome b sequencing suggested a sister relationship of Xenophidion to Bolyeriidae from Mauritius. Similar to Boyleriidae, spinejaw snakes have a jointed maxilla.

Excerpted from Wikipedia’s “Xenophidion” article, available under the CC BY-SA 4.0 licence.