Blue
Ravenous Bugblatter Beast of Traal
Pulling from the FR wiki:
Ptera-men (flying, shapeshifting dino-men, probably just reskinned Aaracokkra)
Humans
Goblins
Bullywugs
Crabmen
BULLYWUG!
Sorry, back in AD&D 2ed we played a monster campaign once, and when my centaur philosopher was killed, he was reincarnated as a bullywug. Ah, what memories.