Mythologization of the giant squid. Thought to be the inspiration for Scylla. Believed to attack schooners, it has been variously described as up to a mile and a half long but based on sucker marks on sperm whales, the maximum size of the giant squid is considered to be 100 feet long weighing 64 tonnes. Best remembered in the Jules Verne tale 20,000 Leagues Under the Sea.