This just in ...
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"If you look closer between the legs, there's webbing that attaches each of the arms together," John Filmer of the Sea Life Centre. "You'd assume if he'd lost one of his legs in an accident, there would be space for an arm to grow back. "But there's no space for two extra legs to grow back. That's just how he is."
Staffers called others zoos and aquariums and scoured the Internet to see if there were records of similar creatures. "No one has ever heard of another case of a six-legged octopus," said display superviser Carey Duckhouse.
They named him 'Henry' because it alliterated well with 'hexapus.' "It has also been mentioned in the grapevine that he was named after King Henry the VIII who had six wives when he should have had eight," Filmer, the centre's marketing director, said.
Until Henry, the most famous six-legged octopus was one that appeared in a 1955 B-movie, 'It Came From Beneath The Sea.'
Source and musical tribute by woot!: