Ethelwynn Trewavas, British ichthyologist, over a dozen fish species named in her honor (d. 1993)
Dr. Ethelwynn Trewavas (5 November 1900 – 16 August 1993) was an ichthyologist at the British Museum of Natural History. She was known for her work on the families Cichlidae and Sciaenidae. She worked with Charles Tate Regan, another ichthyologist and taxonomist.