Squid History". The Gorgon of Greek mythology may have been inspired by squid or octopus, the animal itself representing the severed head of Medusa, the beak as the protruding tongue and fangs, and its tentacles as the snakes. The six-headed sea monster of the "Odyssey", Scylla, may have had a similar origin. The Nordic legend of the kraken may also have derived from sightings of large cephalopods; the science fiction writer Jules Verne told a tale of a kraken-like monster in his 1870 novel "Twenty Thousand Leagues Under the Sea". In literature, H. G. Wells' short story "The Sea Raiders" featured
Twenty Thousand Leagues Under the Sea an extensive bibliography, appendices and a wide-ranging introduction studying the novel from a literary perspective. In particular, his original research on the two manuscripts studies the radical changes to the plot and to the character of Nemo forced on Verne by the first publisher, Jules Hetzel. The national origin of Captain Nemo was changed in most movie realizations; in nearly all picture-based works following the book Nemo was made into a European. However, he was represented as an Indian by Omar Sharif in the 1973 European miniseries "The Mysterious Island". Nemo is also depicted as Indian in a silent film