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Rougarou or Loup Garou (loup meaning wolf, and garou meaning a man who turns into an animal) is a shape-shifting monster that lives in the swamps of Lousiana. Rougarou is actually the Michif word for werewolf. It is like a werewolf, but it can turn into wolf form any time. This is what makes the Rougarou much more dangerous. Cajun folklore says that it stalks the swamps of Acadiana and Greater New Orleans. It is often used by parents to get their children to behave.

Catholics have their own version as well. They say that the Rougarou is a monster that will stalk and murder Catholics that do not obey the rules of Lent. Some people say that the curse (or blessing, for evil people) only lasts for 101 days. The curse is then transferred to the last person bitten. 

Description

This shape-shifter can turn into a werewolf whenever it wants. It is slightly more muscular and powerful though, because it has to cross the dense swamps. It looks a lot like a werewolf, but has some differences. Cajun lore claims that a rougarou possess the body of a man, but the head of a wolf or dog with glowing red eyes. If anyone managed to look into its red glowing eyes or gets bitten by one, they would become a rougarou themselves in a manner very akin to a typical lycanthrope. 

Sightings

Cow mutilations have been reported with no blood left in the body. This aspect is very similar to various chupacabra sightings. Some daring cryptozoologists have attempted to approach the Rougarou, but all attempts have failed.

The Queensland tiger is a cryptid reported to live in the Queensland area in eastern Australia.

Also known by its native name, the yarri, it is described as being a dog-sized feline with stripes and a long tail, prominent front teeth and a savage temperament. It has been hypothesized to be a survivor or descendant of the large predatory marsupial Thylacoleo, officially considered to be extinct, or possibly a large feral cat variant (given possible discrepancies with thylacoleo dentition). In 1926 A. S. le Souef described it as being a ‘Striped marsupial cat’ in The Wild Animals of Australasia, this information later also included in Furred Mammals of Australia, by Ellis Troughton, longtime curator of mammals in the Australian Museum. Among cryptids it has arguably come closest to official recognition.

The earliest documented witness reports of the Queensland marsupial tiger date from 1871, with indigenous traditions of the yarri preceding these. Reports indicate that it is fast and agile (Welfare & Fairley, 1981). Reports have come consistently from the Northeast of Queensland. Though these have diminished in number since the 1950s, they continue to occur (the Beast of Buderim being one recent example of the phenomenon).

Thylacoleo, an animal of similar size and predatory habits, did live in Australia as recently as the late Pleistocene period, perhaps coexisting with the very first humans that arrived at Australia who were the ancestors of modern Australian Aborigines. However, scientists estimate that Thylacoleo went extinct 30,000 years ago. Modern sightings of an animal described as remarkably like Thylacoleo have led some researchers to speculate that a small relict population has somehow survived in remote areas. Cryptozoologists who promote the theory of survival of the Tasmanian Tiger or Thylacine Thylacinus cynocephalus, a Thylacinid, and also currently accepted as extinct, favour proposed survival of The Queensland Tiger. The fundamental difference between the two cases, however, is that the last Tasmanian Tiger in captivity died in 1936, and the species was not officially declared as extinct until 1986. This makes the prospect of species survival of the Thylacine more likely than that of Thylacoleo.

Info from cryptid wiki

The Magician's Monster is a mythological cryptid purported to be living in the forest around Castle Frankenstein, outside of Darmstadt, Germany. It is believed to have been derived from the myths and legends surrounding the historical alchemist who did experiments in the castle, Johann Conrad Dippel, who in turn is speculated to have inspired Mary Shelley, who wrote Frankenstein. Mary visited the region in 1814, two years before she began writing her Gothic novel, while touring Europe with her future husband Percy Shelley. Physical descriptions of the Monster are sparse, but like his counterpart in Shelley's novel, he is said to have been stitched together from various body parts and brought to life with a lightning bolt. He also is reported to have a ghastly appearance traditional to variations on the Frankenstein myth.

The following information about the Magician's Monster is taken from an essay by A.J. Day, from his translation of the anthology Fantasmagoriana (Tales of the Dead) -- the volume that inspired Mary and her friends to write ghost stories that ultimately led to her creation of Frankenstein. Day reveals that Mary Shelley's step-mother, Mary Clairmont, was a translator for the Brothers Grimm, with whom she was in frequent contact:

In his book Burg Frankenstein, Walter Scheele discusses the contents of a letter written by Jacob Grimm to Mary Clairmont, which few have had access to. In the letter, Grimm reports of a "Horror story that should, under no circumstances, be published in the fairy tales collection because it is nothing more than a horrible story. The people who live at the foot of the Frankenstein ruins tell their children stories of the occurrences in and around the castle to frighten them into avoiding the castle and nearby woods during the winter evenings."

According to the story, a magician was supposed to have lived at the castle and used parts of corpses from the cemetery in the valley to create a monster, which he put in the castle prison. One day in November, the Monster broke out of the prison, killed his creator, and fled into the forest. Today he lives there, alone, an enemy of all people. Because of his loneliness, the monster grabs little children who wander alone in the forest and drags them back to his hideaway. There, he plays with them until he becomes bored. Then he dips the unfortunate children into boiling water and eats them.

Another variation of the story, from Miranda Seymour's biography Mary Shelley, mentions “gruesome tales of a cannibal monster who, in times long past, used the grim little castle as his headquarters,” suggesting sightings withinin the castle as well as in the forest surrounding it.

Every Halloween, Dippel's legacy is celebrated at Castle Frankenstein, which is visited by thousands of costumed visitors. Dippel's ghostis said to frequent the castle's tower, rattling the bones of his victims as he calls out for his Monster in the surrounding forests. No sightings of the Monster have ever been confirmed -- but the children who live in the area know to this day to stay out of the woods in the winter, lest they become his hapless victims.

(From cryptid wiki)