Plectranthias helenaePlectranthias helenae is a species of fish in the family Serranidae occurring in the Pacific Ocean. There is little concern over this species and its extinction rate.SizeThis species reaches a length of.EtymologyAmerican ichthyologist J.E. Randall named the fish in honor of his spouse, Helen, "in gratitude for her encouragement and assistance in this and other ichthyological studies".