From The Society of Torch, Pole and Rope post regarding terrible monsters.

http://poleandrope.blogspot.com/2009/02/ten-monsters-i-loathe.html

Eye of the Deep: “Hey Dave! What if a beholder got drunk and fucked a lobster?” “Sure. They didn’t seem to mind the armadillo with a propeller.” Not even an ecology by Ed Greenwood could save this mess. Let’s face it: Most of the aquatic D&D monsters just plain suck. Morkoth, I’m looking at you…