He met with more adventures than can be told , and narrowly escaped being caught by the Basking Shark , and the Spotted Shark , and the Hammerhead , and he met all the untrustworthy ruffians that loaf up and down the seas , and the heavy polite fish , and the scarlet spotted scallops that are moored in one place for hundreds of years , and grow very proud of it ; but he never met Sea Cow , and he never found an island that he could fancy .