https://marco.org/2009/05/11/there-are-four-foot-long-stingrays-down-by-the
There are four-foot-long stingrays down by the Rockaways and off Coney Island, and they’re hard to see when they’re flat against the bottom. A diver will be going about his business when he encounters a section of mud the size of a coffee table that suddenly—zooomp!—up and swims away.
— Uncovering the Secrets Beneath the Surface of the New York Harbor