| Diaulula sandiegensis (Cooper, 1863) Ringed doris | 
| No Picture Available | 
| Family: | Discodorididae () | |||
| Max. size: | 8 cm TL (male/unsexed) | |||
| Environment: | benthic; marine; depth range 0 - 28 m | |||
| Distribution: | Pacific Ocean and the Arctic. | |||
| Diagnosis: | It has a firm elongated body that is nearly white with dark brown scattered rings of various sizes. | |||
| Biology: | Assumed maximum length from Ref. 822. Habitat: Occurs in low intertidal to subtidal. Diet: several species of sponges (Ref. 312). | |||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. 123251) | |||
| Threat to humans: | ||||
| Country info: |  | |||