Cool, thanks. The only one I I disagree with you about is the Frogs of Muurkra.
To me, the card is referring to mundane frogs that have been tainted or changed somehow. The other two cards (below) are talking about a sentient race of frog-like humanoids. In other words, we have frogs, and we have Muurkrans, but the frogs are just monsters, while the Muurkrans are a race. But I admit that it's not entirely clear. Maybe the sentient guys all have sharp teeth?