Unused concept for our Reptile friend

This is what Chris dubbed the Nick Toons version of Roteus.

Little background, Roteus is in the "Movie" version of A4H, so the design wasn't appropriate for that particular treatment. He's an eight foot, four-armed crocodillian of some kind with acid for blood and it arrived on your spaceship. It kills on sight and is generally unpleasant. And, of course, you expect me to accept all this on your word.