Nudibranchs are small soft bodied creatures that live underwater in the oceans of the world. Some nudibranchs are beautifully colorful, while some are cryptically camouflaged.
This site has some general information on nudibranchs and sea slugs. You will also find specific information on and underwater photos of the nudibranchs of Guanacaste, Northwestern Costa Rica.
The different shapes nudibranchs come in are described in the anatomy section.
