| Persian horned viper | |
|---|---|
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Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Suborder: | Serpentes |
| Family: | Viperidae |
| Genus: | Pseudocerastes |
| Species: | P. persicus |
| Binomial name | |
| Pseudocerastes persicus | |
| Synonyms | |
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The Persian horned viper (Pseudocerastes persicus), known as the Persian horned viper, false horned viper, [3] and by other common names, is a species of vipers endemic to the Middle East and Asia. Like all other vipers, it is venomous.
Adults averages between 40 to 70 cm (16 to 28 in) in total length (body + tail), with a maximum total length of 108 cm (43 in) being reported. Females are usually larger than males. These snakes can attain a considerable weight relative to their size, with specimens sometimes exceeding 500 g (1.1 lb). [3]
The head is broad, flat, distinct from the neck and covered with small, imbricate scales. The snout is short and rounded. The nostrils are positioned dorsolaterally and have valves. The nasal scale is unbroken. The rostral scale is small and wide. The eyes are medium in size with vertically elliptical pupils. There are 15-20 interocular scales and 15-20 circumorbitals. The supraorbital hornlike structure above each eye consists of small, imbricate scales and is also present in juveniles. There are 11-14 supralabials and 13-17 sublabials. 2-4 rows of small scales separate the supralabial scales from the suboculars. [3]
The body is covered with weakly to strongly keeled dorsal scales. On many of these, the keel terminates before the end of the scale and forms a bump. Many others form a point. At midbody, there are 21-25 scale rows, none of them oblique. There are 134-163 ventral scales and 35-50 paired subcaudals. The tail is short. [3]
Persian horned viper, false horned viper, [3] Persian horned desert viper, [4] eye-horned viper. [5]
The species name comes from where it is most usually found, Persia (present-day Iran), and the hornlike structures above its eyes.
Pseudocerastes persicus is found in Iran, Pakistan, Afghanistan, northern Oman, the United Arab Emirates, Jordan, and throughout Mesopotamia. [6]
The type locality is listed as "Perse" (= Persia). [2]
This species likes sandy (but not sand dune) or basalt and limestone rock desert and hill country, usually with some vegetation. It tends to avoid areas of human habitation.
These snakes are generally rather slow-moving and may employ various methods of locomotion, including sidewinding, serpentine, and rectilinear. They are also terrestrial and almost totally nocturnal, only being seen during the day or early evening during colder periods. It is not particularly aggressive, but will hiss loudly when disturbed. It is not capable of sinking into the sand vertically like Cerastes . [3] These feed mainly on lizards, small mammals, mice and occasionally small birds and arthropods, but will also eat dead food.
It is oviparous, and sexually mature females lay 11-21 eggs. When produced, these already contain well-developed embryos, each of which can be as much as 8.5 cm (3.3 in) in total length. As a result, they hatch after only 30–32 days at 31 °C and then measure 14.0 to 16.2 cm (5.5 to 6.4 in) in total length. They do well in captivity and are relatively easy to breed. [3] [7]
Pseudocerastes persicus venom exhibits strong hemorrhagic activity typical of most vipers. No antivenom is available for bites from this species, although it is reported that a polyvalent antiserum does offer some protection. [3] [7]
Cerastes cerastes, commonly known as the Saharan horned viper or the desert horned viper, is a venomous species of viper native to the deserts of Northern Africa and parts of the Arabian Peninsula and Levant. It is often easily recognized by the presence of a pair of supraocular "horns", although hornless individuals do occur. Three subspecies have been described.
Field's horned viper is a species of snake in the family Viperidae. The species is native to the deserts of the Middle East. Like all other vipers, it is venomous. It was previously considered a subspecies of the Persian horned viper. The main differences between this species and the Persian horned viper are in scalation and venom composition.
Cerastes is a genus of small, venomous vipers found in the deserts and semi-deserts of northern North Africa eastward through Arabia and Iran. Three species are currently recognized by ITIS, and an additional recently described species is recognized by the Reptile Database. Common names for members the genus include horned vipers, North African desert vipers, and cerastes vipers.
Pseudocerastes is a genus of vipers endemic to the Middle East and Asia. It was originally created as a monotypic genus in 1896 by Boulenger for the species Pseudocerastes persicus, but three species are now recognised: the spider-tailed horned viper ; Persian horned viper and Field's horned viper. Like all other vipers, the members of this genus are venomous.
Vipera ammodytes is a viper species found in southern Europe, mainly northern Italy, the Balkans, and parts of Asia Minor. Like all other vipers, it is venomous. It is reputed to be the most dangerous of the European vipers due to its large size, long fangs and high venom toxicity. The specific name, ammodytes, is derived from the Greek words ammos, meaning "sand", and dutes, meaning "burrower" or "diver", despite its preference for rocky habitats. Five subspecies are currently recognized, including the nominate subspecies described here.
Vipera aspis is a viper species found in southwestern Europe. Its common names include asp, asp viper, European asp, and aspic viper, among others. Like all other vipers, it is venomous. Bites from this species can be more severe than from the European adder, V. berus; not only can they be very painful, but approximately 4% of all untreated bites are fatal. The specific epithet, aspis, is a Greek word that means "viper." Five subspecies are currently recognized, including the nominate subspecies described here.
The many-horned adder is a viper species. It is found in certain rocky desert areas, mostly along the Atlantic coast of southern Africa, in western South Africa and southwestern Namibia. It has characteristic tufts of "horns" above each eye. Like all other vipers, it is venomous. No subspecies are currently recognized.
Cerastes gasperettii, commonly known as the Arabian horned viper, is a venomous viper species found especially in the Arabian Peninsula and north to Israel, Iraq, and Iran. It is very similar in appearance to C. cerastes, but the geographic ranges of these two species do not overlap. No subspecies of C. gasperettii are recognized.
Cerastes vipera, common names Sahara sand viper and Avicenna viper, is a viper species endemic to the deserts of North Africa and the Sinai Peninsula. No subspecies are currently recognized. Like all other vipers, it is venomous.
Montivipera raddei albicornuta is a venomous viper subspecies endemic to Iran. It is a subspecies of Montivipera raddei.
Vipera transcaucasiana is a venomous viper species endemic to parts of Georgia and northern Turkish Anatolia.
The Lebanon viper, also known as Bornmueller's viper, is a species of venomous snake in the subfamily Viperinae of the family Viperidae. The species is native to Western Asia. There are no recognized subspecies.
The Mount Bulgar viper, also called the Bulgardagh viper is a viper species endemic to the mountains of southern Turkey. Like all other vipers, it is venomous. No subspecies are currently recognized.
Vipera lotievi, commonly known as the Caucasian meadow viper, is a species of venomous snake in the family Viperidae. The species is endemic to Azerbaijan, Georgia, and Russia. There are no subspecies that are recognized as being valid.
Vipera monticola, also known as the Atlas mountain viper, is a viper species endemic to Morocco. Like all other vipers, it is venomous.
Montivipera raddei or Armenian viper is a species of viper, a venomous snake in the subfamily Viperinae of the family Viperidae. The species is endemic to Armenia, Azerbaijan, Iran, Turkey, and possibly also Iraq. Two subspecies are recognized.
Wagner's viper, known as the ocellate mountain viper, ocellated mountain viper, and Wagner's viper, is a species of venomous snake in the subfamily Viperinae of the family Viperidae. The species is native to eastern Turkey and northwestern Iran. There are no subspecies that are recognized as being valid.
Montivipera xanthina, known as the rock viper, coastal viper, Ottoman viper, and by other common names, is a viper species found in northeastern Greece and Turkey, as well as certain islands in the Aegean Sea. Like all other vipers, it is venomous. No subspecies are currently recognized.
The spider-tailed horned viper is a species of viper, a venomous snake, in the family Viperidae and genus Pseudocerastes. The genus is commonly known as "false-horned vipers".
