"Now the largest whales, those which frequent those parts of the sea round the Aleutian, Kulammak, and Umgullich islands, have never exceeded the length of sixty yards"

Blue Wale Size
Creative Commons Attribution Share Alike

Blue Wale Size

 The Aleutian Island and Alaska are prime Wale watching territory. A possible canditate for the monster could have been the Blue Wale, the largest animal ever known to have existed .