Atractaspidinae

Atractaspidinae
Atractaspis engaddensis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Infraorder: Alethinophidia
Family: Lamprophiidae
Subfamily: Atractaspidinae
Günther, 1858
Synonyms
  • Aparallactinae

The Atractaspidinae are a subfamily of snakes[1] found in Africa and the Middle East, commonly called mole vipers, stiletto snakes, or burrowing asps. Currently, 12 genera are recognized.[2]

Description

This subfamily includes many genera formerly classed in other families and subfamilies, on the basis of fang type. It includes fangless (aglyphous), rear-fanged (opisthoglyphous), fixed-fanged (proteroglyphous), and viper-like (solenoglyphous) species. Early molecular and physiological data linking this subfamily to others were ambiguous and often contradictory, which means the taxonomy of this subfamily has been highly contentious. The nominate family, Atractaspididae, has itself been moved to and from other taxa, reinforcing the ambiguity of this subfamily.

Geographic range

This subfamily is found in Africa and the Middle East.[3][4][5]

Venom

Most of these snakes are inoffensive or far too small to envenomate a person effectively. However, some can inflict severe tissue necrosis; e.g. if the victim's thumb is bitten, the tip of that digit may be lost. Relapses may occur long after the bite. [6][7]

Very few deaths have resulted from accidents with these snakes, although large individuals of Atractaspis microlepidota and a few other long-glanded species are very likely to be dangerous.[8] Some of the long-fanged species are able to stab their prey (or an unfortunate human) even while their mouths are closed, and the typical grasp used by herpetologists to securely hold venomous snakes is not necessarily safe for this group.[9][10] This ability to stab sideways even with a closed mouth is the basis for an English name used for some of them - side-stabbing snakes.[4]

Genera

Subfamily Atractaspidinae -- 13 Genera
Genus[2] Taxon author[2] Species
Count[2]		 Common name Geographic range
Amblyodipsas W. Peters, 1857 9 glossy snakes Africa
Aparallactus A. Smith, 1849 11 centipede-eaters Africa
Atractaspis A. Smith, 1849 15 burrowing asps, stiletto snakes[2] Africa, Middle-East
Brachyophis Mocquard, 1888 1 Revoil's short snake Africa
Chilorhinophis F. Werner, 1907 3 two-headed snakes Africa
Elapotinus Jan, 1862 1 Jan's snake Africa
Hypoptophis Boulenger, 1908 1 African bighead snake Africa
Homoroselaps[11] Jan, 1858 2 harlequin snakes Southern Africa
Macrelaps Boulenger, 1896 1 Natal black snake Africa
Micrelaps Boettger, 1880 5 two-headed snakes Africa, Middle-East
Poecilopholis Boulenger, 1903 1 Cameroon racer Africa
Polemon Jan, 1858 13 snake-eaters Africa
Xenocalamus Günther, 1868 5 quill-snouted snakes Africa

Taxonomy

This family was previously classified as a subfamily of the Colubridae: the Aparallactinae.[3]

See also

References

  1. ↑ Pyron, R. Alexander; et al. (2011). "The phylogeny of advanced snakes (Colubroidea), with discovery of a new subfamily and comparison of support methods for likelihood trees" (PDF). Molecular Phylogenetics and Evolution 58.2: 329–342. Archived (PDF) from the original on 3 October 2013.
  2. 1 2 3 4 5 "Atractaspididae". Integrated Taxonomic Information System. Retrieved 17 August 2007.
  3. 1 2 Mehrtens JM. 1987. Living Snakes of the World in Color. New York: Sterling Publishers. 480 pp. ISBN 0-8069-6460-X.
  4. 1 2 Spawls S, Branch B. 1995. The Dangerous Snakes of Africa. Ralph Curtis Books. Dubai: Oriental Press. 192 pp. ISBN 0-88359-029-8.
  5. ↑ Parker HW, Grandison AGC. 1977. Snakes -- a natural history. Second Edition. British Museum (Natural History) and Cornell University Press. 108 pp. 16 plates. LCCCN 76-54625. ISBN 0-8014-1095-9 (cloth), ISBN 0-8014-9164-9 (paper).
  6. ↑ http://www.youtube.com/watch?v=p31K9gfBev8&feature=related
  7. ↑ http://www.youtube.com/watch?v=hSx1fiLVxLs
  8. ↑ Atractaspididae at the TIGR Reptile Database
  9. ↑ Kurnik Haviv and Kochva (1999). A snake bite by the burrowing asp, Atractaspis engaddensis. Toxicon 37(1): 223-227.
  10. ↑ Deufel and Cundall (2003). Feeding in Atractaspis (Serpentes: Atractaspididae): a study in conflicting functional constraints. Zoology 106: 43-61.
  11. ↑ http://reptile-database.reptarium.cz/advanced_search?taxon=Atractaspidinae&submit=Search

External links

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