Board Thread:General Discussion/@comment-24863788-20141216060128/@comment-24936039-20141217222914

AuntieJoans wrote: It's probably that Ursula was still a sea witch in Heroes And Villains, but later became a goddess in Ariel, because in Skin Deep, when Regina mentioned Ariel to Rumple, Belle had already been banished, which means the flashbacks in Heroes And Villains took place before the flashbacks in Ariel. Plus, mermaids can swim through worlds, so I bet Ursula can do that as well.

Maybe... Ursula was some sort of Octopus hybrid, so she might not have that particular ability that Mermaids have in OUAT. As far as Goddess goes, she just could be a pretender to being a minor deity, pretty much what Regina did in the Ariel episode. But being a sea witch/creator as well, can pull it off much better then Regina could hope to do. Or perhaps this Ursula is just more of a demi-god (an offspring of a sea deity that presumably mated with an (unfortunate) human - and no jokes about Octopus creatures and strange Japanese Animi).