It is actually quite difficult to find much information about the 25 different species of snake in Jordan. I am told that 7 of them are venemous, the main rule being if it is black, leave it alone! there are three black snakes in Jordan, 1 is a constrictor and the other two are venomous.
We had a snake in my garden the other week. I have a dog and three young children, it was a very dark colour, no paterrning on it, almost universally a dark grey to black.
I had no idea what type it was but just could not take the risk that it may hide in the foliage and take a bite at one of them while they were playing, so much to my personal disgust, I had to kill it. I hate killing anything without a reason, so I do feel guilt that I had to, but I just could not rest knowing it was there and could do damage.
About 18 months ago at the place where I work there was a 2.5 metre black constrictor which was captured and removed.
It's not that I don't like snakes, its just that I don't trust them and know of few of the "bushcraft" type fraternity in Jordan who do (If wild boar hunting near to the dead sea, the area is rife with snakes, get bitten by one of the many vipers down there and you would not get to hospital), however most people here have never seen one and would not know what to do if they did.
Alan L.