Appearance
This nudibranch is variable in color, from a very pale yellow through a rich yellow, to a rather dark orange. The gill rosette is tinged with white at the tips.The dorsum is covered in tubercles. There are a number of dark spots on the dorsum, but never on the tubercles themselves. These dark spots vary a lot in number from one individual to the next.
This animal can grow to be as large as 200 mm, or nearly 8 inches in length.
Naming
This species was previously placed in the genus "Anisodoris" and was known for a long time as "Anisodoris nobilis". Subsequently it was known as "Diaulula nobilis".Distribution
This species occurs in the Eastern Pacific Ocean from Alaska to Baja California. It eats sponges.References:
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