OK, another breather between the didactic babblings of your favorite stalker...
Read About My Neighborhood's Mythical Monster
the 'Devil of the Marsh', described as having a "snake-like body, dark greenish skin and a very large head with small horns."
This cool site also has info on my local free "liberation drive in" - hosted in a local parking lot near me!- and other nifty Oaklandcentric goodies. What a find!