This is the first photo I took after my brother was kind enough to lift a large container on our patio. It shows 2 centipedes with some sowbugs for scale (I made my measurements based on the sowbugs, so it is only an approximation). I'm showing both in this submission because they were found at the same time, and are the same species. (I will add what I think the species is, when I can find my darn book--Plants and Animals of the Pacific Northwest)
(1). It has a good section on some of the non-insect invertebrates in this area.