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They are reptiles of
Cylindrical body and extended, without extremities.
They displace themselves reptando with movements ondulatorios of their
Musculoso body.
They have the skin covered with escamas that they move periodically.
Eyes with párpados transparent soldiers. Not they possess tímpano.
The mouth is very dilatable and permits them to swallow its prey
Entire. The tongue is bífida and mobile, that they utilize like organ
Sensorial of the smell and touch.
Its skeleton has many vértebras: the víboras they have
200 and the pitones, 400.
Some they have hollow teeth with the ones that can inject
Poison.
Some 2.700 species exist.
The not poisonous families are: the snakes and the boas or
Constrictoras.
The poisonous they are you collect them, viboras and marine snakes.
- The boidos
or snakes constrictoras, as well as the snakes or colúbridos
Not they are poisonous (except the snake bastarda).
The constrictoras they hunt al I spy and they kill their victims
by estrangulamiento, being rolled up upon them with their
Powerful rings.
Among them the knownest are the boas, the pitones
And the anaconda.
Some of these they come 7 meters to reach of
Length.
- The hidrófidos
Or marine snakes are very poisonous. They have the queue
Aplanada, that serves them like organ natatorio.
They live in the proximity of the coasts of the oceans
I indicate and Peaceful.
These snakes are vivíparas, that is to say that you raise them
They are born already formed.
- The vipéridos
Or víboras they have poisonous teeth.
The viperinos or víboras exactly said they are
terrestrial snakes that live in the old one
continent, among the ones that they are found the víbora áspid,
the víbora European, the víbora cornuda, the víbora of
Rusell, etc.
- The
crotalinos are almost all Americans and they have fosetas
facial, that are sensitive organs al heat, with the
That they locate their victims.
They can be cited the snakes of cascabel, the mocasín,
Etc.
- The elápidos or you collect are poisonous snakes that are characterized
by possessing to the two sides of the head a species of
capucha that can extend to will upon odo when
It is irritated.
They live almost always in the proximities of the courses of
Water and they inhabit in Africa and Asia.
They are also elápidos the mamba black African and the
snakes of coral that live in the continent
American.
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