Category: Nudibranchs view all from this category

Description Diaulula sandiegensis is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae.

The specific epithet sandiegensis means: "of San Diego", the Southern California city.

This dorid nudibranch occurs in the eastern Pacific, from Alaska to Baja California, Mexico. It also occurs in Japan.

This nudibranch grows to about 100 mm (4") in length. The background color can be white or any shade of yellow to a yellowish brown, and it has characteristic markings consisting of a few (and sometimes more numerous) brown rings or irregular spots.

Habitat Rocks, Ocean or bay shallows.

Range Alaska, California, Northwest, Western Canada.