Phylliroe bucephala is eating Rhizophysa eysenhardtii Peron & Lesueur, 1807 or R. filiformis (Forskål, 1775) P. bucephala is not so rare planktonic nudibranch. It's found at tropical and subtropical sea throughout the world. Especially, It's found many at the current-rip. The body is thin and flat. The shape looks like a flounder fish. It has ability to bioluminescence. Rhizophysa is kind of Siphonophorae jellyfish. They are known stocking strong poison to cnidocyte. Phylliroe bucephala is eating Bathyphysa conifera or R. filiformis Location: Kume-Island Okinawa Japan Time & Date: 20:30, 05, Nov, 2016 Depth: 5m, Sea Temp: 25℃ Specimen Size: 40mm * Phylliroe bucephala Lamarck, 1816 = Phylliroe bucephalum Peron & Lesueur, 1810 Japanese name "konoha-umiushi" ="konoha" mean leaf. ="umiushi" mean nudibranchs. <<References>> WoRMS - World Register of Marine Species - Phylliroe b...