Ethelwynn Trewavas
Ethelwynn Trewavas was an ichthyologist at the British Museum (Natural History). She was known for her work on the families Cichlidae and Sciaenidae. She worked with Charles Tate Regan, another ichthyologist and taxonomist.
Academic studies and career
She received her bachelor's degree and Board of Education Certificate in Teaching in 1921 from Reading University, and then worked as a teacher before being employed by the King's College of Household and Social Science as a part-time demonstrator, spending most of her time on research. She was taught by Dr. Nellie B. Eales when associated with the Freshwater Biological Association. She met Charles Regan and was employed by him as his assistant until hired by the British Museum as Assistant Keeper in 1935. She was appointed Deputy Keeper of Zoology in 1958, and retired in 1961.She served as the senior scientist in the Fish Section of the British Museum for almost 50 years, and was known internationally as an authority on several diverse groups of fishes. She was best known for her work describing African Rift lake cichlids, but she published extensively on other groups as well. She used laboratory study and extended field trips to research her current areas of study, and often relied on interviews with local people to understand the behaviours, forms and food potential of fishes.
One example of the influence of Regan and Trewavas is that of the currently named genus categories of Lake Malawi mbuna, two are attributed to Regan and six to Trewavas. Of the Haplochromis sensu lato in the lake, five were described by Regan and twenty-seven by Trewavas, either individually or in partnership with David Eccles.
Later in life she mentored prominent researcher Ad Konings, who has continued many of her areas of study. When her eyesight failed she insisted that he accept her stereo microscope as a gift so he could continue her work with African cichlids.
Trewavas died in Reading on 16 August 1993.
Honours
Trewavas was awarded the Linnean Medal of the Linnean Society of London in 1968, and elected as a Fellow of the society in 1991. She was elected an Honorary Foreign Member of the American Society of Ichthyologists and Herpetologists in 1946, and awarded an honorary Doctor of Science degree by Stirling University in 1986.Species and genera named after Trewavas
Many fellow ichthyologists honoured Trewavas by naming newly discovered species after her. Even during her lifetime, more fish species had received the specific epithet trewavasae or ethelwynnae than were named after most other modern fish researchers, underscoring the importance of her contribution to the field:- The deepsea dragonfish Eustomias trewavasae Norman, 1930 Glyptothorax trewavasae Hora, 1938
- The threadfin cichlid Petrochromis trewavasae Poll, 1948Symphurus trewavasae Chabanaud, 1948Garra trewavasai Monod, 1950
- The Lake Malawi cichlid Labeotropheus trewavasae Fryer, 1956Garra ethelwynnae Menon, 1958Neolebias trewavasae Poll & Gosse, 1963Atrobucca trewavasae Talwar & Sathirajan, 1975Protosciaena trewavasae Linophryne trewavasae Bertelsen, 1978Gobiocichla ethelwynnae Roberts, 1982Phenacostethus trewavasae Parenti, 1986
- The Lake Malawi cichlid Aulonocara ethelwynnae M. K. Meyer, Riehl & Zetzsche, 1987Tylochromis trewavasae Stiassny, 1989Triplophysa trewavasae Mirza & Ahmad, 1990Johnius trewavasae Sasaki, 1992
- The eel Rhynchoconger trewavasae Ben-Tuvia, 1993Etia Schliewen & Stiassny, 2003
- †Trewavasia White & Moy-Thomas, 1941
- The Lake Malawi cichlid Copadichromis trewavasae Konings, 1999Placidochromis trewavasae Hanssens, 2004
Publications (incomplete)
- 1983: Tilapiine Fishes of the Genera "Sarotherodon", "Oreochromis" and "Danakilia" . 583 pages. London: British Museum
Taxa described by her
- See :Category:Taxa named by Ethelwynn Trewavas