Proatheris
Proatheris | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Order: | Squamata |
Suborder: | Serpentes |
Family: | Viperidae |
Genus: | Proatheris Broadley, 1996 |
Species: | P. superciliaris
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Binomial name | |
Proatheris superciliaris (W. Peters, 1854)
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Synonyms | |
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Proatheris (commonly referred to as the lowland viper and swamp viper among
Description
Proatheris superciliaris is a small species that averages 40 to 50 cm (about 16 to 20 inches) in total length (body + tail), with a maximum total length of 61 cm (24 in). The females are slightly larger than the males. The head has a somewhat elongated appearance, the top of which is covered with small scales except for a pair of large supraocular scales, which are almost twice as long as they are wide.[4]
Common names
Common names for the Proatheris include the lowland viper, swamp viper,[2] lowland swamp viper,[5] eyebrow viper, swamp adder,[4] Peter's viper, flood-plain viper,[6] Mozambique viper, African lowland viper,[7] and the domino viper.[8]
Geographic range
It is found in East Africa. The southern part of its range begins near Beira, in central Mozambique, extends up north over the Mozambique Plain to Quissanga, and through Malawi and as far north as the floodplains of southern Tanzania at the northern end of Lake Malawi.
The
Its range is apparently centered on the lower section of the
Habitat
It is almost always found in low-lying marshes, floodplains and land frequently used for grazing cattle. The soil is never too dry, since this would make it difficult for the rodents that they feed on to dig their burrows. These snakes are entirely terrestrial and are usually found in or around these rodent burrows.[4]
Behaviour
One of the distinguishing characteristics of the Atheris group (to which Proatheris is closely related), is that they have prehensile tails. With Proatheris, the young and subadults have this capability, but it is diminished in the adults.[4]
Feeding
Preys mainly on small frogs and toads. Occasionally, it also feeds on small rodents.[2]
Reproduction
This species is
Venom
The first known case of a survivor of snakebite by this species was reported by Els (1988), involving a 20 cm (7.9 in) juvenile and 24-year-old victim penetrated by a single fang. The results were painful, but there were none of the strongly hemotoxic symptoms that had been associated with Atheris venom up to that point.[4]
In a second case in 1996, a victim experienced severe
Taxonomy
This species was previously placed in the genus Atheris based on skull characteristics and because of its partially prehensile tail.[4]
Etymology
The
References
- ^ ISBN 978-1-893777-01-9. Retrieved 29 November 2013.
- ^ ISBN 0-88359-029-8.
- ^ "Proatheris superciliaris". Integrated Taxonomic Information System. Retrieved 31 July 2006.
- ^ ISBN 0-89464-877-2.
- ^ Proatheris superciliaris at the Reptarium.cz Reptile Database. Accessed 9 August 2007.
- ^ a b Proatheris superciliaris at The World Of Atheris. Accessed 9 September 2007.
- ISBN 0-398-02808-7.
- ISBN 0-486-26629-X.
- ISBN 978-1-84773-086-2.
- ^ Venom at The World Of Atheris. Accessed 9 September 2007.
Further reading
- Boulenger, G.A. 1896. Catalogue of the Snakes in the British Museum (Natural History). Volume III., Containing the ... Viperidæ. London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiv + 727 pp. + Plates I.- XXV. (Vipera superciliaris, p. 491).
- Branch, Bill. 2004. Field Guide to Snakes and Other Reptiles of Southern Africa. Third Revised edition, Second impression. Sanibel Island, Florida: Ralph Curtis Books. 399 pp. ISBN 0-88359-042-5. (Genus Proatheris, p. 119; Proatheris superciliaris, pp. 119–120 + Plate 14).
- Broadley, D.G. 1996. A review of the tribe Atherini (Serpentes: Viperidae), with descriptions of two new genera. African Journal of Herpetology 45: 40-48. (Genus Proatheris).
- Els R. 1988. Atheris superciliaris envenomation. J. Herpetol. Assoc. Africa 34: 52.
- Marais J. 1992. A Complete Guide to the Snakes of Southern Africa. Malabar, Florida: Krieger Publishing. 248 pp.
- Marx H., Rabb G.B. 1965. Phyletic analysis of fifty characters of advanced snakes. Field Zool. 63: 1-321.
- Peters, W. 1854. Diagnosen neuer Batrachier, welche zusammen mit der früher (24. Juli und 17. August) gegebenen Übersicht der Schlangen und Eidechsen mitgelheilt werden. Bericht über die zur Bekanntmachung geeigheten Verhandlugen der Königl. Preuss. Akademie der Wissenschaften zu Berlin 1854: 614-628. (Vipera superciliaris, p. 625).
- Stevens RA. 1973. A report on the lowland viper, Atheris superciliaris from the Lake Chilwa floodplain of Malawi. Arnoldia (Rhodesia) 22: 1-22.