Question: Griggstown cow is believed to be a New Jersey myth, similar to what legendary creature that is said to inhabit the Pine Barrens in Southern New Jersey?

full_context: Document 1: Adjule: The Adjule, also known as Kelb-el-khela, is a canine cryptid, claimed to inhabit the North African region, especially the areas in and around Sahara Desert in Mauritania. Reported primarily by the nomadic Tuaregs, and Théodore Monod in 1928, the adjule is said to be a totally unknown canine which takes the form of a dog or wolf, but today is described as isolated population of African wild dog. Some alternative names are "kelb el khela" ("bush dog") for the male and "tarhsît" for the female. However, despite a continuing firm belief in its existence due to urban myths, this cryptid has since been debunked and its sightings attributed to wild canines mistaken for the adjule, such as the African wild dog which is now extinct in certain areas of the Sahara. There is one unconfirmed sighting of a canid-like animal from the coastal area of Mauritania in 1992; hunters living in the coastal areas of the Western Sahara, to the north of Mauritania, described an animal resembling a wild dog, which hunted in packs. However, this was not confirmed for "Lycaon pictus" species (IUCN/CSG, 1997).
Document 2: Arkan Sonney: An arkan sonney (literally "lucky urchin" or "plentiful pig") is the Manx term for hedgehog. In Manx folklore it is a type of fairy creature which looks like a pig with long hairs. They are said to bring good luck to one who catches them. For this reason they're also called "lucky piggies". They flee human beings. They live in the wild, are faster than lighting on land and have feathered wings that can be up to one and a half times their body size.
Document 3: Jersey Devil: In New Jersey folklore, the Jersey Devil is a legendary creature said to inhabit the Pine Barrens of Southern New Jersey, United States. The creature is often described as a flying biped with hooves, but there are many variations. The common description is that of a kangaroo-like creature with the head of a goat, leathery bat-like wings, horns, small arms with clawed hands, cloven hooves and a forked tail. It has been reported to move quickly and often is described as emitting a "blood-curdling scream".
Document 4: Beast of Exmoor: There have been numerous reports of eyewitness sightings, however the official Exmoor National Park website lists the beast under "Traditions, Folklore, and Legends", and the BBC calls it "the famous-yet-elusive beast of Exmoor." Sightings were first reported in the 1970s, although it became notorious in 1983, when a South Molton farmer claimed to have lost over 100 sheep in the space of three months, all of them apparently killed by violent throat injuries. Descriptions of its coloration range from black to tan or dark grey. It is possibly a cougar or black leopard which was released sometime in the 1960s or 1970s after a law was passed making it illegal for them to be kept in captivity outside zoos. However, considering that cougar and leopard life spans are 12–15 years, this is unlikely. In 2006 the British Big Cats Society reported that a skull found by a Devon farmer was that of a puma, however the Department for Environment, Food and Rural Affairs (Defra) states that "Based on the evidence, Defra does not believe that there are big cats living in the wild in England."
Document 5: Beast of Buchan: The Beast of Buchan is a big cat or phantom cat reportedly sighted mainly in the historic Buchan area of Aberdeenshire in northeastern Scotland. Sightings throughout other areas of Scotland, stretching from the northern highlands down to the border with England, have also been claimed; the earliest reports date back to the 1930s. The tales of the Buchan Beast are as well known as those of the Beast of Bodmin.
Document 6: Galloway Puma: The Galloway Puma is a "phantom cat", a supposedly real big cat, which has been sighted numerous times throughout Dumfries and Galloway, in south-west Scotland.
Document 7: Niles Canyon ghost: The Niles Canyon ghost story is the Northern California variation on the vanishing hitchhiker archetype. There are many different variations of this story depending on whom you ask. All stories include a girl being involved in some sort of motorized vehicle accident on February 26 (year often changed). One variation of the story includes a girl being involved in a car crash on Niles Canyon road (off the 680 freeway in Sunol, California) on the way to her prom. The girl died on impact and to this day is said to haunt Niles Canyon road every February 26. The tale of the haunting goes that people traveling along Niles Canyon road (now Highway 84) on the night of February 26 will see a normal-looking high school-aged girl walking along the road in a prom dress (many people have said it is white). People traveling along the road (mostly those traveling alone) have said to have stopped and offered the girl a ride. She accepts the ride, giving the driver an address across the bridge (either Dumbarton or Bay Bridge depending on the storyteller). Once the driver gets to the beginning of the bridge, the girl will disappear. Sometimes people have gone to the address to find that a girl many years ago matching that description once lived there. Today, many people will travel along this treacherous pitch black road in the hopes of catching a glimpse of the Niles Canyon ghost.
Document 8: Ghost bat: The ghost bat ("Macroderma gigas"), also known as the false vampire bat, is a bat native to Australia. The bat is named for the extremely thin membrane of its wings that makes it appear ghostly at night. Ghost bats have grey fur on their backs and pale grey or white fur on their undersides. They have long, narrow wings, but no tail, averaging 11 cm in length. Females are generally smaller than males. Ghost bats have large ears for long distance hearing, and very sharp teeth so they can attack prey.
Document 9: Bigfoot: Bigfoot (also known as Sasquatch) is a cryptid which supposedly is a simian-like creature of American folklore that is said to inhabit forests, especially in the Pacific Northwest. Bigfoot is usually described as a large, hairy, bipedal humanoid. The term "sasquatch" is an Anglicized derivative of the Halkomelem word "sásq'ets".
Document 10: Momo the Monster: Momo is the name of a local legend, similar to the Bigfoot, which is reported to live in Missouri. The name Momo is short for 'Missouri Monster' and it is reported to have a large, pumpkin-shaped head, with a furry body, and hair covering the eyes, which resembles a shag carpet. First reported in 1971, near Louisiana, Missouri by Joan Mills and Mary Ryan, Momo was first reported up and down the Mississippi River with later sightings documented further west by travel of water ways. It is supposedly a large, 7 ft tall, hairy, black, manlike creature that emits a terrible odor. Some suggest it was a rogue American Indian. Following sightings in 1972 beginning at 3:30 pm July 11, first reported by Terry, Wiley, and Doris Harrison, and lasting for about 2 weeks, tracks were found and submitted to Lawrence Curtis, director of the Oklahoma City Zoo and Botanical Garden. He deemed the tracks to be that of an unknown primate species.
Document 11: Griggstown cow: For thirty years there had been a legend of a "ghost cow" that wandered the areas around the Millstone River floodplain and Griggstown. The cow was seen many times but only on foggy nights or other times of poor visibility, and many tales were told by local hunters and hikers along the canal path. No spoor or tracks were ever found. Some fuzzy photographs were even taken, but they were all inconclusive. At the time area was mostly suburban homes and open fields, and the canal was now a state park and walking trail so reports of a lone feral cow wandering a suburban park for decades were greeted with suspicion by local authorities. The cow became known as a sort of "Loch Ness Monster" of New Jersey and believed to be a myth, much like the Jersey Devil.
Document 12: Barghest: In Northern English folklore, the Barghest or Barguest is a mythical monstrous black dog with large teeth and claws, though in other cases the name can refer to a ghost or household elf, especially in Northumberland and Durham, such as the Cauld Lad of Hylton.
Document 13: A Night with the Jersey Devil: A Night With The Jersey Devil is a song by the American rock singer-songwriter Bruce Springsteen.
Document 14: The Faceless People of Monroe: The tale of the Faceless People of Monroe are a family of mutant humanoids that are rumored to live in a ramshackle farmhouse in rural Monroe, Connecticut. They are rumored to live alongside an old man who serves as their caretaker, who is often seen working in the yard and chasing away cars. This legend is also known as "The House of the Faceless People".
Document 15: Pine Barrens (New Jersey): The Pine Barrens, also known as the Pinelands or simply the Pines, is a heavily forested area of coastal plain stretching across more than seven counties of New Jersey. The name "pine barrens" refers to the area's sandy, acidic, nutrient-poor soil. Although European settlers could not cultivate their familiar crops there, the unique ecology of the Pine Barrens supports a diverse spectrum of plant life, including orchids and carnivorous plants. The area is also notable for its populations of rare pygmy Pitch Pines and other plant species that depend on the frequent fires of the Pine Barrens to reproduce. The sand that composes much of the area's soil is referred to by the locals as sugar sand.
ground_truth: Jersey Devil