I didn't know that the gargouille and peluda were in Dragon back in the day! Cool! I have my own peluda floating around somewhere on this board... surprisingly similar, save I gave it DR 10/adamantine to simulate its inpenetrable hide (save for the tail). I love how you kept the critter-bits information. I love that sort of stuff.
Incidentally, there's a few little typos in the hai riyo entry. Its Attack line claws are listed as 2d (you forgot the 8), and the air in "air effects" has an extra i.
