Echis carinatus. Family: Viperidae. Region Indian Sub-continent. Countries India, Sri Lanka.
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Saw-scaled viper , genus Echis , any of eight species of small venomous snakes family Viperidae that inhabit arid regions and dry savannas north of the Equator across Africa, Arabia , and southwestern Asia to India and Sri Lanka.
They are characterized by a stout body with a pear-shaped head that is distinct from the neck, vertically elliptical pupils , rough and strongly keeled scales , and a short thin tail. On both sides of the body are several rows of obliquely arranged serrated scales.
Adults range in length from 0. Echis coloration includes various shades of brown, gray, or orange with darker dorsal blotches and lateral spots.
Saw-scaled vipers move by sidewinding locomotion see sidewinders. They are nocturnal, coming out at twilight to hunt for food, which includes mammals , birds , snakes, lizards , amphibians , and invertebrates such as scorpions and centipedes. Egg-laying species, producing up to 23 eggs per female, reside in northern Africa, whereas live-bearing species, such as E.
Saw-scaled vipers are small, but their irritability, aggressive nature, and lethal venom make them very dangerous. When alarmed, saw-scaled vipers will move slowly with the body looped into S-shaped folds. The oblique scales are rubbed against each other to produce a hissing sound, which is a defensive alarm used to warn potential predators. These snakes are, however, quick to strike, and mortality rates for those bitten are high.
In the regions where they occur, it is believed that saw-scaled vipers are responsible for more human deaths than all other snake species combined. Saw-scaled viper. Article Media. Info Print Cite. Submit Feedback. Thank you for your feedback. Written By: Van Wallach. See Article History. Learn More in these related Britannica articles:. Snake , suborder Serpentes , any of more than 3, species of reptiles distinguished by their limbless condition and greatly elongated body and tail.
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Saw-scaled viper , genus Echis , any of eight species of small venomous snakes family Viperidae that inhabit arid regions and dry savannas north of the Equator across Africa, Arabia , and southwestern Asia to India and Sri Lanka. They are characterized by a stout body with a pear-shaped head that is distinct from the neck, vertically elliptical pupils , rough and strongly keeled scales , and a short thin tail. On both sides of the body are several rows of obliquely arranged serrated scales. Adults range in length from 0.
Echis carinatus is a venomous viper species found in parts of the Middle East and Central Asia , and especially the Indian subcontinent. It is the smallest member of the big four snakes that are responsible for causing the most snakebite cases and deaths, due to various factors including their frequent occurrence in highly populated regions, and their inconspicuous nature. The size of E. Head distinct from neck, snout very short and rounded.
Objective s : Echis carinatus is one of the venomous snakes in Iran. The venom of Iranian Echis carinatus is a rich source of protein with various factors affecting the plasma protein and blood coagulation factor. Some of these proteins exhibit types of enzymatic activities. However, other items are proteins with no enzymatic activity. Materials and Methods: In order to study the mechanism and effect of the venom on human plasma proteins, the present study has evaluated the effect of crude venom and all fractions.