Bulletin 1 - March 1977: Snakes
Snakes
by Bish Brown
The very mention of the word "snakes" sends a chilly feeling down
the spines of most people. Why should this be so? Snakes are portrayed to
children from an early age as something unpleasant and dangerous. This
impression remains throughout life, as most people rarely see a live snake in
the wild.
On land, two species of cobra and one species of viper have been reported
from the Emirates. However, only the viper has been caught and positively
identified. Five or six species of non-poisonous snakes have also been found. It
is possible that the "cobras" that have been reported are actually a
colubrid called Malpolon miolensis (Reuss), which
often erects a cobra-like hood when defensive. This rear-fanged snake, known as
the Arabian Rear-fang, though slightly poisonous, could not inject the fatal
dose of poison that the cobra would inject.
The identification of snakes could help to lessen the fear when non-poisonous
snakes are encountered unexpectedly on a desert trip. Illustrated here is the
only known poisonous snake found in the United Arab Emirates; the Sand or
Saw-scaled Viper.
The Sand Viper is of the family Viperidae, genus Cerastes
Wagler and species Cerastes gasperetti (Laviton and Anderson).
Description
The head is triangular in shape and covered with very small scales. The two
long, hollow, injection fangs are situated at the front of the upper jaw
connected to a poison sac. Poison is injected as the jaws are closed. Eyes are
set well forward. The neck is very thin, expanding into a fairly thick body. The
body is covered with large coarse scales that are rubbed together by coiling to
make a loud "sssssh" when the snake is disturbed. Total length is up
to 24 inches ending in a short thin tail. Some specimens develop a half-inch
long protuberance over each eye -- the horned vipers.
Color
The head is sand colored with yellowish-brown markings and a grayish-blue
line over the eye to the back of the head. The body is light fawn with irregular
yellowish-brown markings. The short tail is often yellow. Undersides are a
yellowish-white. Colors can very depending on surroundings and may change
slightly.
Habitat
Sandy deserts, where it lies partly covered by loose sand.
Food
Any small mammal, lizard or bird that ventures near enough to be caught.
Snakes will normally try to hide in a hole at the approach of a human. They
will not normally attack unless a foot is inadvertently placed on or near the
snake.
Do not pick up a snake you have not identified.
Always look ahead and wear strong shoes or boots when hiking in soft sand.
Always use a walking stick or broom handle to turn over pieces of debris.
Never use your bare hands.
|