The hoop snake is a legendary creature of the United States,Canada, Wales and Australia. The hoop snake is reffered in the Pecos Bill stories; although it is his description of hoop snakes with which most people are most familiar, stories of the creature predate those fictional tales considerably. Several sightings of the hoop snake have been alleged along the Minnesota-Wisconsin border in the St. Croix River valley and in Wake County in North Carolina and in Kamloops, British Columbia and Conwy bay in Wales (See fearsome critters.)

According to folklore, the distinguishing feature of a hoop snake is that it can grasp its tail in its jaws and roll after its prey like a wheel, thus looking somewhat like the ouroboros of Greek mythology, or Tsuchinoko (a legendary fat snake that can roll like a wheel) in Japan. In one version of the myth, the snake straightens out at the last second, skewering its victim with its venomous tail. The only escape is to hide behind a tree, which receives the deadly blow instead and promptly dies from the poison.

The hoop snake is mentioned in a letter from 1784 (published in Tour in the U.S.A., Vol. I, p. 263-65. London):

As other serpents crawl upon their bellies, so can this; but he has another method of moving peculiar to his own species, which he always adopts when he is in eager pursuit of his prey; he throws himself into a circle, running rapidly around, advancing like a hoop, with his tail arising and pointed forward in the circle, by which he is always in the ready position of striking.

It is observed that they only make use of this method in attacking; for when they fly from their enemy they go upon their bellies, like other serpents. From the above circumstance, peculiar to themselves, they have also derived the appellation of hoop snakes.

Sightings are still occasionally reported, even though the existence of the hoop snake has never been accepted by the scientific community. Naturalist Raymond Ditmars placed $10,000 in trust at a New York bank for the first person to provide evidence of a hoop snake. Some have suggested that is a distorted description of the sidewinder of the American southwest, or of mud snakes, which will occasionally lie in a loose hoop shape. It is also possible that the hoop snake is an embellishment of actual instances of snakes swallowing their own tails. Photographic examples of this are readily found on the Internet today.

Although this snake is unlikely to exist there is many evidence and photoes to support this snakes existance. For example heres a link to a photo of the Hoop Snake In Wales now let your herping imangination go wild...?