The Gloucester Monster

In American legends there is a mention of a huge monster, similar to a reptile, which was seen in Gloucester Bay. 

The length of the snake according to descriptions ranged from 15.2 to more than 30 meters (50-100 feet), and in girth the snake was about like a "big barrel". She moved in a snake-like manner, although there were other information, and her body was in joints and resembled a string with buoys on them, like on fishing nets.