The spectacularly colored nudibranch is moving across a 5 inch tunicate. Nudibranchs are the slugs of the sea. See Yellow and Blue Nudibranch for more information about the species. For more about tunicates see the much smaller varieties in Gold Tunicates and Tunicate Salad.
The Green Nudibranch is best up to 7 x 10, but it can be ordered in the 9 x 14 size.