A list of supernatural beings in the British Isles, from the Denham Tracts, 1892-5 (pictured).
~from The Penguin Book of English Folktales, Neil Philip, 1992

The author notes that this is where Tolkien found the creature name: Hobbits. I also see Fire Drakes. And I’d add that since this was published, there are at least two recognizable creature/character names J.K. Rowling may have gotten from it.

4

Here’s Mirow, a freshwater leviathan. Infinitely patient and clever, she’s always willing to listen to interesting problems and could, potentially, offer her assistance. It’s just difficult to tell whether Mirow intends to help, or if she’s more interested in getting you to move a little, too, close, to her River.
But a 50/50 between being eviscerated or blessed with ancient gator magic is better than nothing, right?

Thanks to everyone who helped me decide on her colors on twitter a while back!