Geitodoris heathi

Geitodoris heathi, common name "Heath's dorid", is a species of colorful sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Dorididae.

Distribution
This species of dorid nudibranch lives in the eastern Pacific, from Alaska to Baja California.

Description
This nudibranch grows to be about 45 mm, or almost 2 inches in length. It can be white, yellow, or even a sort of pinkish color. It often sports small dark speckles that may appear as large brown patches to the naked eye. These dark speckles also often cause their gills to appear as a dusty colour, as well.

Books

 * Behrens David W., 1980, Pacific Coast Nudibranchs: a guide to the opisthobranchs of the northeastern Pacific, Sea Challenger Books, California