Juergen Freund / Spanish dancer nudibranch {Hexabranchus sanguineus} egg ribbon, Indo-pacific

Juergen Freund / Spanish dancer nudibranch (Hexabranchus sanguineus) Philippines

Chris Newbert / Shrimp (Periclimenes sp) living among the gills of the Spanish Dancer (Hexabranchus sanguineus) nudibranch, 50 feet deep, Papua New Guinea

Chris Newbert / Shrimp (Periclimenes sp) living among the gills of the Spanish Dancer (Hexabranchus sanguineus) nudibranch, 50 feet deep, Papua New Guinea

Norbert Wu / Spanish Dancer (Hexabranchus sanguineus) nudibranch, Red Sea

Doug Perrine / Two Emperor shrimps {Periclimenes imperator / Zenopontonia rex} on gills of Spanish dancer nudibranch, Great Barrier Reef, Australia (Non-ex).

Juergen Freund / Spanish dancer nudibranch {Hexabranchus sanguineus} Indo-pacific

Carine Schrurs / Spanish dancer nudibranch eggs {Hexabranchus sanguineus} Anilao, Batangas, Philippines

Carine Schrurs / Spanish dancer nudibranch {Hexabranchus sanguineus} Anilao, Batangas, Philippines

Juergen Freund / Spanish dancer {Hexabranchus sanguineus} Sulu-Sulawesi seas, Indo Pacific

Juergen Freund / Spanish dancer {Hexabranchus sanguineus} Sulu-sulawesi seas, Indo Pacific

Juergen Freund / Spanish dancer {Hexabranchus sanguineus} Sulu-sulawesi seas, Indo Pacific