Banana slug (Ariolimax columbianus), endemic to the Pacific coast, Alaska to California. A decomposer and recycler, here apparently either going home from work or on a break.
We (Julia, Genevieve, and Guy) visited Seattle and vicinity in early August 2008. Had a great time in the city, ferried across to Victoria and back, and then rented a car to see the Olympic Peninsula and the Pacific Ocean.
A beautiful place.
Photos by Genevieve.