This is the oldest story I could find so that I could bump it.
Bump

Malloy said she has seen the monster before _ first in the waters off Horseneck Island and again north of the island in 1983.
This time, Malloy said she saw a jet black hump bob up and down and disappear in the water. She said another Newport resident who wants to remain anonymous saw a larger and a smaller hump.
Memphre is believed to look somewhat like a plesiosaur, a water-living dinosaur of the Jurassic period, brown or black in color, with four fins or paddle-like feet, an elongated roundish body and a long neck. It ranges from 6 to 50 feet long. Popular artwork shows the skin color as green.