Texas coral snake (Micrurus
fulvius tener) - The coral snake is by far the
most common venomous snake in urban and suburban
areas of the Rio Grande Valley. It is easily recognized
by the fact that its red and yellow bands touch.
(However, this rule does not work in many parts
of Mexico.) Although coral snakes are inoffensive
and seldom bite, they are quite capable of biting
a human being and their neurotoxic venom is more
lethal than a rattlesnake's.