Plectranthias helenae is a species of fish in the family Serranidae occurring in the Pacific Ocean. Randall, J.E., 1980. Revision of the fish genus Plectranthias (Serranidae: Anthiinae) with description of 13 new species. Micronesia 16(1):101-187. There is little concern over this species and its extinction rate.
Size This species reaches a length of .
Etymology American 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".
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