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Vipera seoanei



Vipera seoanei

Conservation status

Least Concern (IUCN)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Subfamily: Viperinae
Genus: Vipera
Species: V. seoanei
Binomial name
Vipera seoanei
Lataste, 1879
Synonyms
  • Vipera berus seoanei - Lataste, 1879
  • [Pelias] seoanei - Reuss, 1927
  • Vipera seoanei - Saint-Girons & Duguy, 1976
  • Vipera seoanei seoanei - Braña & Bas, 1983
  • Vipera (Vipera) seoanei - Obst, 1983
  • Vipera seoannei - Bon, 1987
  • V[ipera]. seoanei latastei - González, 1991[1]
Common names: Baskian viper,[2] Iberian cross adder,[3] Portuguese viper.[4]

Vipera seoanei is a venomous viper species found in extreme southwestern France and the northern regions of Spain and Portugal.[1] Two subspecies are currently recognized, including the nominate race described here.[5]

Contents

Description

Adults may grow to a length of 75 cm, but usually less.[2]

This is a highly polymorphic species for which four main color-pattern types have been described:[2]

A: well-developed, brown zigzig pattern down the back, very much like V. berus, set against a beige or light-gray ground color.
B: roughly twin-striped pattern, with the ground color expressed as two narrow, straight, dorsolateral longitudinal lines along the body. Resembles V. kaznakovi to some degree.
C: uniform brownish morph with no pattern.
D: fragmented zigzag pattern (see V. s. cantabrica).

Geographic range

Extreme southwestern France and the northern regions of Spain and Portugal. The type locality is given as "In montibus Gallaecorum et Cantabrorum ... d'Espagne" (the mountains of Galicia and Cantabrici, Spain). Mertens and Müller (1928) suggested a restricting the type locality to "Cabañas, Prov. Caruña, Spanien" (according to Golay et al. (1993), this is Cabañas, near Ferrol, Caruña Province, northwestern Spain).[1]

Conservation status

This species is classified as Least Concern (LC) according to the IUCN Red List of Threatened Species (v3.1, 2001).[6] It was given this status due to its relatively wide distribution, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category. Year assessed: 2005. [7]

It is, however, listed as a protected species (Appendix III) under the Berne Convention.[8]

Subspecies

Species[5] Authority[5] Geographic range[2]
V. s. cantabrica Brana & Bas, 1983 The Cantabrian Mountains of northern Spain.
V. s. seoanei Lataste, 1879 Extreme southwestern France and the northern regions of Spain and Portugal.

See also

References

  1. ^ a b c McDiarmid RW, Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, vol. 1. Herpetologists' League. 511 pp. ISBN 1-893777-00-6 (series). ISBN 1-893777-01-4 (volume).
  2. ^ a b c d Mallow D, Ludwig D, Nilson G. 2003. True Vipers: Natural History and Toxinology of Old World Vipers. Krieger Publishing Company, Malabar, Florida. 359 pp. ISBN 0-89464-877-2.
  3. ^ Steward JW. 1971. The Snakes of Europe. Cranbury, New Jersey: Associated University Press (Fairleigh Dickinson University Press). 238 pp. LCCCN 77-163307. ISBN 0-8386-1023-4.
  4. ^ Mehrtens JM. 1987. Living Snakes of the World in Color. New York: Sterling Publishers. 480 pp. ISBN 0-8069-6460-X.
  5. ^ a b c Vipera seoanei (TSN 635001). Integrated Taxonomic Information System. Accessed on 19 August 2006.
  6. ^ Vipera seoanei at the IUCN Red List. Accessed 2 September 2007.
  7. ^ 2001 Categories & Criteria (version 3.1) at the IUCN Red List. Accessed 2 September 2007.
  8. ^ Convention on the Conservation of European Wildlife and Natural Habitats, Appendix III at Council of Europe. Accessed 9 October 2006.

Further reading

  • Golay P, Smith HM, Broadley DG, Dixon JR, McCarthy. Golray P, Schatti J-C, Toriba M. 1993. Endoglyphs and Other Major Venomous Snakes of the World: A Checklist. New York: Springer-Verlag. 393 pp.
  • Mertens R, Müller L. 1928. Liste der amphibien und reptilen Europes. Abh Senckenb Naturf Ges 45:1-62.

Gallery
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Vipera_seoanei". A list of authors is available in Wikipedia.
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