Scientific name: Hermissenda opalescens
Taxonomy: Kingdom Animalia → Phylum Mollusca → Class Gastropoda → Subclass Heterobranchia → Infraclass Euthyneura → Subterclass Ringipleura → Superorder Nudipleura → Order Nudibranchia → Suborder Cladobranchia → Superfamily Aeolidioidea → Family Myrrhinidae → Genus Hermissenda
Locations: Eastern Pacific
Group: Marine Life → Invertebrates → Nudibranchs
Renamed recently; see https://www.scubaboard.com/community/threads/will-the-real-hermissenda-crassicornis-please-stand-up.533924/