Several divers spotted this unusual rockfish near Santa Rosa in the California Channel Islands, on the Aug 2008 REEF fish-counting trip. The fish was at Groovy Wall (a.k.a. East End Pinnacles), just southeast of the island. We spotted it around 9 am on the morning of 10 Aug.
This image was made without flash. The fish was bright yellow with 3 black spots on the back. The eyes were large and the head particularly rough-looking. The fins looked a little ragged to me. It had some rosy coloring on the top of the head, which you can see in the closeup. I would estimate the length at 10 inches. We weren't able to identify it from the books.
The fish was sitting in a moon sponge, situated in a crevice on the side of the wall, at about 50' depth.
Many thanks in advance for help with the ID, or additional impressions from the divers!