Cressie (Cressiteras anguilloida) is an unknown eel-like animal, reported to live in Crescent Lake, Newfoundland off Robert’s Arm. Crescent Lake is a 20 square kilometre lake connected to the ocean by a 1.8 kilometre river. Cressie is described as being a 10 to 20 ft long eel or eel-like creature, being black with slippery smooth skin and no fins and swims in a rolling motion. The first sightings of Cressie predate the European invasion of Newfoundland. The Beothuk people told of a gigantic eel called Haoot tuwedyee, or “swimming demon.” The first recorded sightings were in the beginning of the 20th century, but sightings heavily increased after 1950 or so.
In 1955, two men saw what they thought was an upturned boat heading upwind, but upon approaching it, it flipped itself around again and dived below the lake. In 1985, scuba divers searching for a plane that crashed into Crescent Lake were suddenly attacked by a school of eel-like creatures, 15 feet long and as thick as a man's thigh. None of them were severely injured except for a couple minor bite wounds. On July 9th, 1991 at 12:00 PM, former teacher and newspaper correspondent Fred Parsons observed a jet black, 20 ft long eel-like creature undulating across the lakes surface. Two months later on September 5th, Pierce Rideout observed a 15 foot tall black slow moving animal drop below the surface and then rise up again.