| Citation | Camacho-García, Y., T.M. Gosliner and Á. Valdés., 2005 Field Guide to the sea slugs of the tropical Eastern Pacific. California Academy of Sciences. 129 pp. |
| Ref. | 867 Camacho-García, Y., T.M. Gosliner and Á. Valdés., 2005 |
| Page | |
| Named Used as Valid | Hancockia californica |
| Locality | |
| Distribution | California south to Baja California and Costa Rica. |