clade Euthyneura clade Nudipleura clade Nudibranchia clade Dexiarchia clade Cladobranchia Hancockia californica is a species of sea slug, an Eastern Pacific Ocean nudibranch, a marine, opisthobranch gastropod mollusk in the family Hancockiidae.

[1] This marine species occurs off California, USA., Baja California, Mexico.

[2]