He [Ctesias] speaks also of another race of men, who are known as Monocoli, who have only one leg, but are able to leap with surprising agility. The same people are also called Sciapodae, because they are in the habit of lying on their backs, during the time of the extreme heat, and protect themselves from the sun by the shade of their feet.

That sounds like it came straight out of Voyage of the Dawn Treader. Reading these sorts of things just reminds me of how well read Lewis must have been. Bringing back an obscure mythological species and making them as memorable as he did was a stroke of genius.

Okay, that's all kinds of cool! While I sort of wish we could give Lewis the credit for coming up with dufflepuds, it's just as satisfying to see him use old myths effectively.

Next we're going to find that marshwiggles are something from Norse mythology.

they are mentioned in Marco polo the movie also. that's actually where I first heard of them.