Thanks! I've found all of the illustrations I've looked for so far - I might jazz up some entries with extra art, especially if the monster comes from a real-world source, too, but I think it's important to have the Fiend Folio pictures here as I will be commenting on the art.For illustrating the thread, you can find the illustrayion in good resolution in the ruins of the old WotC site. They are in a bit of disorder (the abrian is on the "part two" and pretty much placed at random), and some might be missing (the abyssal ghoul is in the art gallery for City of the Spider Queen, indeed), but they are here just for that.
This is the first appearance of the ahuizotl in D&D, remarkably, although I believe they made an appearance in Pathfinder. They really are pretty darned cool.Ahuizotl: Whenever I see these, I always wish they’d stick around and join the staple cast of monsters. Every culture in the world should have at least a few of their iconic creatures featured so prominently. If rakshasa and oni can be Monster Manual mainstays, why not the naagloshi and wendigo, or grootslangs and kongamato, or bunyips and yara-ma-yha-whos?
Aoa: How the hell do you pronounce this?
More seriously, does anyone else think these are inspired by the flying rods? You know, those cryptids when footage is slowed down that are actually just insects moving really quickly? I kinda like the idea of those as a monster, and these fit the image... although obviously I’d make their disenchantment attack temporary.