Vipera aspis zinnikeri

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Vipera aspis zinnikeri
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Clade: Tetrapodomorpha
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Genus: Vipera
Species: V. aspis
Subspecies:V. a. zinnikeri
Trinomial name
Vipera aspis zinnikeri
Kramer, 1958
Synonyms
  • Vipera aspis zinnikeri
    Kramer, 1958
  • Vipera (Rhinaspis) aspis zinnikeri— Obst, 1983 [1]
Common names: Gascony asp, Gascony viper, [2] Gascony asp viper. [3]

Vipera aspis zinnikeri is a venomous viper subspecies [4] endemic to the Pyrenees region of Spain and France. [5]

Venomous snakes are species of the suborder Serpentes that are capable of producing venom, which they use for killing prey, for defense, and to assist with digestion of their prey. The venom is typically delivered by injection using hollow or grooved fangs, although some venomous snakes lack well-developed fangs. Common venomous snakes include the families Elapidae, Viperidae, Atractaspididae, and some of the Colubridae. The toxicity of venom is mainly indicated by murine LD50, while multiple factors are considered to judge the potential danger to humans. Other important factors for risk assessment include the likelihood that a snake will bite, the quantity of venom delivered with the bite, the efficiency of the delivery mechanism, and the location of a bite on the body of the victim. Snake venom may have both neurotoxic and hemotoxic properties.

Viperinae subfamily of reptiles

The Viperinae, or viperines, are a subfamily of venomous vipers endemic to Europe, Asia and Africa. They are distinguished by their lack of the heat-sensing pit organs that characterize their sister group, the subfamily Crotalinae. Currently, 12 genera and 66 species are recognized. Most are tropical and subtropical, although one species, Vipera berus, even occurs within the Arctic Circle.

Subspecies taxonomic rank subordinate to species

In biological classification, the term subspecies refers to a unity of populations of a species living in a subdivision of the species' global range and varies from other populations of the same species by morphological characteristics. A subspecies cannot be recognized independently. A species is either recognized as having no subspecies at all or at least two, including any that are extinct. The term is abbreviated subsp. in botany and bacteriology, or ssp. in zoology. The plural is the same as the singular: subspecies.

Contents

Etymology

It was named after "W. Zinniker", a Swiss herpetologist. [2]

Switzerland federal republic in Central Europe

Switzerland, officially the Swiss Confederation, is a country situated in western, central, and southern Europe. It consists of 26 cantons, and the city of Bern is the seat of the federal authorities. The sovereign state is a federal republic bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland is a landlocked country geographically divided between the Alps, the Swiss Plateau and the Jura, spanning a total area of 41,285 km2 (15,940 sq mi). While the Alps occupy the greater part of the territory, the Swiss population of approximately 8.5 million people is concentrated mostly on the plateau, where the largest cities are to be found: among them are the two global cities and economic centres Zürich and Geneva.

Description

V. a. zinnikeri is relatively small in size, with a maximum total length (body + tail) of 65 cm (26 in). Also, the head is long and narrow compared to other subspecies of this species. The total number of ventrals plus subcaudals is 175-187 in males and 170-183 in females. [3]

In biology, a species ( ) is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. While these definitions may seem adequate, when looked at more closely they represent problematic species concepts. For example, the boundaries between closely related species become unclear with hybridisation, in a species complex of hundreds of similar microspecies, and in a ring species. Also, among organisms that reproduce only asexually, the concept of a reproductive species breaks down, and each clone is potentially a microspecies.

Ventral scales

In snakes, the ventral scales or gastrosteges are the enlarged and transversely elongated scales that extend down the underside of the body from the neck to the anal scale. When counting them, the first is the anteriormost ventral scale that contacts the paraventral (lowermost) row of dorsal scales on either side. The anal scale is not counted.

Subcaudal scales

In snakes, the subcaudal scales are the enlarged plates on the underside of the tail. These scales may be either single or divided (paired) and are preceded by the anal scale.

The color pattern is much like that of Vipera berus . The dorsal pattern is fused into a broad, wavy or zigzag dark stripe that contains a straight-edged, pale stripe about three scales wide. This pattern stands out clearly against the ground color, which is particularly light along the edges of the dorsal pattern. Series of dark vertical bars or extended ovals run along the flanks, opposing the indentations of the dorsal pattern. [3]

<i>Vipera berus</i> species of reptile

Vipera berus, the common European adder or common European viper, is a venomous snake that is extremely widespread and can be found throughout most of Western Europe and as far as East Asia. Known by a host of common names including common adder and common viper, adders have been the subject of much folklore in Britain and other European countries. They are not regarded as especially dangerous; the snake is not aggressive and usually bites only when really provoked, stepped on, or picked up. Bites can be very painful, but are seldom fatal. The specific name, berus, is New Latin and was at one time used to refer to a snake, possibly the grass snake, Natrix natrix.

The aforementioned middorsal stripe may be pale beige or grey. The ground color of some specimens may approach clear orange. [2]

Geographic range

This race is found in the Pyrenees region of northeastern Spain and southwestern France. [5] Steward (1971) states that they occur in the Department of Gers in Gascony, southwestern France. [3] Street (1979) describes its range as "Gascony, Andorra and a nearby Spanish locality." [6]

Pyrenees Range of mountains in southwest Europe

The Pyrenees is a range of mountains in southwest Europe that forms a natural border between Spain and France. Reaching a height of 3,404 metres (11,168 ft) altitude at the peak of Aneto, the range separates the Iberian Peninsula from the rest of continental Europe, and extends for about 491 km (305 mi) from the Bay of Biscay to the Mediterranean Sea.

Spain Kingdom in Southwest Europe

Spain, officially the Kingdom of Spain, is a country mostly located in Europe. Its continental European territory is situated on the Iberian Peninsula. Its territory also includes two archipelagoes: the Canary Islands off the coast of Africa, and the Balearic Islands in the Mediterranean Sea. The African enclaves of Ceuta, Melilla, and Peñón de Vélez de la Gomera make Spain the only European country to have a physical border with an African country (Morocco). Several small islands in the Alboran Sea are also part of Spanish territory. The country's mainland is bordered to the south and east by the Mediterranean Sea except for a small land boundary with Gibraltar; to the north and northeast by France, Andorra, and the Bay of Biscay; and to the west and northwest by Portugal and the Atlantic Ocean.

France Republic with mainland in Europe and numerous oversea territories

France, officially the French Republic, is a country whose territory consists of metropolitan France in Western Europe and several overseas regions and territories. The metropolitan area of France extends from the Mediterranean Sea to the English Channel and the North Sea, and from the Rhine to the Atlantic Ocean. It is bordered by Belgium, Luxembourg and Germany to the northeast, Switzerland and Italy to the east, and Andorra and Spain to the south. The overseas territories include French Guiana in South America and several islands in the Atlantic, Pacific and Indian oceans. The country's 18 integral regions span a combined area of 643,801 square kilometres (248,573 sq mi) and a total population of 67.3 million. France, a sovereign state, is a unitary semi-presidential republic with its capital in Paris, the country's largest city and main cultural and commercial centre. Other major urban areas include Lyon, Marseille, Toulouse, Bordeaux, Lille and Nice.

See also

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References

  1. ↑ McDiarmid RW, Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1. Washington, District of Columbia: Herpetologists' League. 511 pp. ISBN   1-893777-00-6 (series). ISBN   1-893777-01-4 (volume).
  2. 1 2 3 Mehrtens JM. 1987. Living Snakes of the World in Color. New York: Sterling Publishers. 480 pp. ISBN   0-8069-6460-X.
  3. 1 2 3 4 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. ↑ "Vipera aspis zinnikeri". Integrated Taxonomic Information System . Retrieved 15 August 2006.
  5. 1 2 Vipera aspis at the Reptarium.cz Reptile Database . Accessed 13 December 2007.
  6. ↑ Street D. 1979. The Reptiles of Northern and Central Europe. London: B.T. Batsford Ltd. 268 pp. ISBN   0-7134-1374-3.

Further reading

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