Description of deadliest land / sea snakes found in sri lanka russell's viper




Дата канвертавання25.04.2016
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DESCRIPTION OF DEADLIEST LAND / SEA SNAKES FOUND IN SRI LANKA

Russell's viper (Tic / Thith Polonga)
Vipera russellii

Description: Light brown body with three rows of dark brown or black splotches bordered with white or yellow extending its entire length.
Characteristics: This dangerous species is abundant over its entire range. It is responsible for more human fatalities than any other venomous snake. It is irritable. When threatened, it coils tightly, hisses, and strikes with such speed that its victim has little chance of escaping. Its hemotoxic venom is a powerful coagulant, damaging tissue and blood cells.
Habitat: Variable, from farmlands to dense rain forests. It is commonly found around human settlements.
Length: Average 1 meter, maximum 1.5 meters

Saw-scaled viper (Weli Polonga)
Echis carinatus

Description: Color is light buff with shades of brown, dull red, or gray. Its sides have a white or light-colored pattern. Its head usually has two dark stripes that start behind the eye and extend to the rear.
Characteristics: A small but extremely dangerous viper. It gets the name saw-scaled from rubbing the sides of its body together, producing a rasping sound. This ill-tempered snake will attack any intruder. Its venom is highly hemotoxic and quite potent. Many deaths are attributed to this species.
Habitat: Found in a variety of environments. It is common in rural settlements, cultivated fields, arid regions, barns, and rock walls.
Length: Average 45 centimeters, maximum 60 centimeters.

Green tree pit viper (Pala Polonga)
Trimeresurus gramineus

Description: Uniform bright or dull green with light yellow on the facial lips.
Characteristics: A small arboreal snake of some importance, though not considered a deadly species. It is a dangerous species because most of its bites occur in the head, shoulder, and neck areas. It seldom comes to the ground. It feeds on young birds, lizards, and tree frogs.
Habitat: Found in dense rain forests and plantations.
Length: Average 45 centimeters, maximum 75 centimeters.

Krait (Ceylon Krait – Polon Krawala / Mudu Karawala / Dunu Karawala -
- Indian Common Krait – Magamaruwa / Thel Karawala)
Bungarus caeruleus

Description: Black or bluish-black with white narrow crossbands and a narrow head.
Characteristics: Kraits are found only in Asia. This snake is of special concern to man. It is deadly--about 15 times more deadly than the common cobra It is active at night and relatively passive during the day. The native people often step on kraits while walking through their habitats. The krait has a tendency to seek shelter in sleeping bags, boots, and tents. Its venom is a powerful neurotoxin that causes respiratory failure.
Habitat: Open fields, human settlements, and dense jungle.
Length: Average 90 centimeters, maximum 1.5 meters.


King cobra (Nagaya)
Ophiophagus hannah

Description: Uniformly olive, brown, or green with ringlike crossbands of black.
Characteristics: Although it is the largest venomous snake in the world and it has a disposition to go with this honor, it causes relatively few bites on humans. It appears to have a degree of intelligence. It avoids attacking another venomous snake for fear of being bitten. It feeds exclusively on harmless species. The female builds a nest then deposits her eggs. Lying close by, she guards the nest and is highly aggressive toward anything that closely approaches the nest. Its venom is a powerful neurotoxin. Without medical aid, death is certain for its victims.
Habitat: Dense jungle and cultivated fields.
Length: Average 3.5 meters, maximum 5.5 meters.

Common cobra (Naya)
Naja naja

Description: Also known as the Asiatic cobra. Usually slate gray to brown overall. The back of the hood may or may not have a pattern.
Characteristics: A very common species responsible for many deaths each year. When aroused or threatened, the cobra will lift its head off the ground and spread its hood, making it more menacing. Its venom is highly neurotoxic, causing respiratory paralysis with some tissue damage. The cobra would rather retreat if possible, but if escape is shut off, it will be a dangerous creature to deal with.
Habitat: Found in any habitat cultivated farms, swamps, open fields, and human dwelling where it searches for rodents.
Length: Average 1.2 meters, maximum 2.1 meters.

Yellow-bellied sea snake (Bada kaha Muhudu Naya)
Pelamis platurus

Description: Upper part of body is black or dark brown and lower part is bright yellow.
Characteristics: A highly venomous snake belonging to the cobra family. This snake is truly of the pelagic species--it never leaves the water to come to shore. It has an oarlike tail to aid its swimming. This species is quick to defend itself. Sea snakes do not really strike, but deliberately turn and bite if molested. A small amount of their neurotoxic venom can cause death.
Habitat: Found in all oceans except the Atlantic Ocean.
Length: Average 0.7 meter, maximum 1.1 meters.

Banded sea snake
Laticauda colubrina

Description: Smooth-scaled snake that is a pale shade of blue with black bands. Its oarlike tail provides propulsion in swimming.
Characteristics: Most active at night, swimming close to shore and at times entering tide pools. Its venom is a very strong neurotoxin. Its victims are usually fishermen who untangle these deadly snakes from large fish nets.
Habitat: Common in all oceans, absent in the Atlantic Ocean.
Length: Average 75 centimeters, maximum 1.2 meters.


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