Colossal Squid

The Colossal Squid (Mesonychoteuthis hamiltoni), sometimes called the Antarctic or Giant Cranch Squid, is believed to be the largest squid species.

http://en.wikipedia.org/wiki/Colossal_Squid

http://news.bbc.co.uk/1/hi/sci/tech/2910849.stm

http://www.tonmo.com/science/public/giantsquidfacts.php