Hadal cephalopods: first squid observation (Oegopsida, Magnapinnidae, Magnapinna sp.) and new records of finned octopods (Cirrata) at depths > 6000 m in the Philippine Trench

Hadal cephalopods: first squid observation (Oegopsida, Magnapinnidae, sp.) and new records of finned octopods (Cirrata) at depths > 6000 m in the Philippine TrenchDOI: info:10.1007/s00227-021-03993-xv. 169No. 1Springer Heidelberg