Ethelwynn Trewavas
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Dr. Ethelwynn Trewavas (November 5, 1900-August 16, 1993) was a respected ichthyologist from the British Museum of Natural History. She was known principally for her work on the families Cichlidae and Sciaenidae. She worked with Charles Tate Regan another famous ichthyologist and taxonomist who named many cichlid species.
A species of Petrochromis, P. trewavasae a cichlid from Lake Tanganyika is named in her honour.