to me it looks like it might belong to the NIGHT LIZARD family. this is a family of lizards common to so cal. Usually there pupils are vertical and they have no eye lids like a gecko plus they stay fairly small usually 5-10 in., but if this doesnt add up then maybe its a type of WHIPTAIL they have eye lids a long thin tail and get to be a little larger 12-17 inch, but im really not sure, i would get a North American reptile identification book from your local book store if you want to research your local herps. National Audubon Society makes a lot of helpful field guides and most book stores seem to cary them, you may even be able to access some online.