Perhaps there is a way to do a section for any species that appear in this show like this page has for the Trolls and Ogres. That would be something to do if any other mythical creatures appear in "Once Upon a Time."
Well, that's kind of a long shot considering these mythical creatures are not seen that often. Many of them just appear in one episode--except for Graham's wolf--and then we never see them again. We already have individual pages for most of them, and they are all categorized under the "animals" category.