Trewavas, Ethelwynn. 1928. "Descriptions of five new cichlid fishes of the genus Haplochromis from Lake Victoria". Annals and Magazine of Natural History. Series 10:93-95 (crc00362)
Trewavas, Ethelwynn. 1931. "A revision of the cichlid fishes of the genus Lethrinops Regan". Annals and Magazine of Natural History. Series 10:7:133-152 (crc00999)
Trewavas, Ethelwynn. 1933. "Scientific results of the Cambridge Expedition to the East African Lakes, 1930-1. --11. The cichlid fishes". Journal of the Linnean Society of London (Zoology). 38:259:309-341. DOI: 10.1111/j.1096-3642.1933.tb00062.x (crc01010)
Trewavas, Ethelwynn. 1935. "A Synopsis of the Cichlid Fishes of Lake Nyasa". Annals and Magazine of Natural History. Series 10:65-118 (crc00118)
Trewavas, Ethelwynn. 1936. "Dr. Karl Jordan's expedition to South-West Africa and Angola: The fresh-water fishes". Novitates Zoologicae. 40:63-74 (crc00982)
Trewavas, Ethelwynn. 1938. "Lake Albert fishes of the genus Haplochromis". Annals and Magazine of Natural History. Series 11:1:4:435-449 (crc01061)
Trewavas, Ethelwynn. 1941. "Nyasa fishes of the genus Tilapia and a new species from Portuguese East Africa". Annals and Magazine of Natural History. Series 11:294-306 (crc01144)
Trewavas, Ethelwynn. 1942. "The cichlid fishes of Syria and Palestine". Annals and Magazine of Natural History. Series 11:9:55:526-536 (crc01246)
Trewavas, Ethelwynn. 1943. "A new cichlid fish from the Gold Coast". Annals and Magazine of Natural History. (Ser11)186-191 (crc00347)
Trewavas, Ethelwynn. 1946. "The types of African cichlid fishes described by Borodin in 1931 and 1936, and of two species described by Boulenger in 1901". Proceedings of the Zoological Society of London. 116(2):240-246. DOI: 10.1111/j.1096-3642.1946.tb00121.x (crc01695)
Trewavas, Ethelwynn. 1947. "An Example of ‘Mimicry’ in Fishes". Nature. 160, p120 (crc02569) (abstract)
Trewavas, Ethelwynn & F.R. Irvine. 1947. "Fresh-water fishes". F.R. Irvine (ed.): The fishes and fisheries of the Gold Coast. The Crown Agents for the Colonies, London. 221-282 (crc03410)
Trewavas, Ethelwynn. 1947. "Speciation in cichlid fishes of east african lakes". Nature. 160:96-97. DOI: 10.1038/160096b0 (crc02570) (abstract)
Trewavas, Ethelwynn & Max Poll. 1952. "Three new species and two new subspecies of the genus Lamprologus, Cichlid fishes of Lake Tanganyika". Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. 28(50):1-16 (crc00055)
Trewavas, Ethelwynn. 1953. "A new species of the cichlid genus Limnochromis of Lake Tanganyika". Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. 29:6:1-3 (crc01166)
Trewavas, Ethelwynn. 1961. "A New Cichlid Fish in the Limpopo basin". Annals of the South African Museum. 46:t5:53-56 (crc01053)
Trewavas, Ethelwynn. 1962. "Fishes of the crater lakes of the northwestern Cameroons". Bonner Zoologische Beiträge. 13(1/3):146-192 (crc00354)
Trewavas, Ethelwynn. 1964. "A revision of the genus Serranochromis Regan (Pisces, Cichlidae)". Annales du Musée royal de l'Afrique Centrale (Série Zoology). (Serie 8, Sciences Zoologique):(125):1-58 (crc01475)
Trewavas, Ethelwynn. 1966. "A preliminary review of fishes of the genus Tilapia in the eastward-flowing rivers of Africa, with proposals of two new specific names". Revue de Zoologie et Botanique Africaines. 74(3-4):394-424 (crc01655)
Trewavas, Ethelwynn. 1966. "Fishes of the genus Tilapia with four anal spines in Malawi, Rhodesia, Mozambique and southern Tanzania". Revue de Zoologie et Botanique Africaines. 50-62 (crc01454)
Trewavas, Ethelwynn. 1966. "Tilapia aurea (Steindachner) and the status of Tilapia nilotica exul, T. mondi and T. lemassoni (Pisces, Cichlidae)". Israel Journal of Zoology. 14:258-276 (crc03477)
Trewavas, Ethelwynn & D.F.E. Thys van den Audenaerde. 1969. "A new Angolan species of *Haplochromis* (Pisces, Cichlidae)". Mitteilungen aus dem Hamburgischen zoologischen Museum und Institut. 66:237-239 (crc00194)
Trewavas, Ethelwynn & J. Green, S. A. Corbet. 1972. "Ecological studies on crater lakes in West Cameroon. Fishes of Barombi Mbo". Journal of Zoology, London. (167):41-95 (crc00303) (abstract)
Trewavas, Ethelwynn. 1973. "A new species of cichlid fishes of rivers Quanza and Bengo, Angola, with a list of the known Cichlidae of these rivers and a note on Pseudocrenilabrus natalensis Fowler". Bulletin of the British Museum (Natural History) Zoology Series. 25(1):27-37 (crc01007)
Trewavas, Ethelwynn. 1973. "I. On the cichlid fishes of the genus Pelmatochromis with proposal of a new genus for P. congicus; on the relationship between Pelmatochromis and Tilapia and the recognition of Sarotherodon as a distinct genus". Bulletin of the British Museum (Natural History) Zoology Series. 25:1:1-26 (crc01180) (abstract)
Trewavas, Ethelwynn. 1974. "The freshwater fishes of rivers Mungo and Meme and Lakes Kotto, Mboandong and Soden, west Cameroon". Bulletin of the British Museum (Natural History) Zoology Series. 26(5):329-419 (crc00243) (abstract)
Trewavas, Ethelwynn. 1975. "A new species of Nanochromis (Pisces, Cichlidae) from the Ogowe system, Gabon.". Bulletin of the British Museum (Natural History) Zoology Series. 28(5)233-235 (crc00339)
Trewavas, Ethelwynn & D.J. Stewart. 1975. "A new species of Tilapia (Pisces, Cichlidae) in the Zambian Zaïre system". Bulletin of the British Museum (Natural History) Zoology Series. 28:5:191-197 (crc01031)
Trewavas, Ethelwynn. 1976. "Tilapiine fishes from crater lakes north of Lake Malawi". Bulletin of the British Museum (Natural History) Zoology Series. 30(5):149-156 (crc01919)
Trewavas, Ethelwynn. 1980. "Tilapia and Sarotherodon?". Buntbarsche Bulletin. (81):1-6 (crc05647)
Trewavas, Ethelwynn. 1981. "Addendum to 'Tilapia and Sarotherodon?'". Buntbarsche Bulletin. (87):12 (crc06863)
Trewavas, Ethelwynn. 1981. "Nomenclature of the tilapias of Southern Africa". Journal of the Limnological Society of Southern Africa. 7:42 (crc05634) (abstract)
Trewavas, Ethelwynn. 1982. "Generic groupings of Tilapiini used in aquaculture". Aquaculture. 27(1):79-81 (crc05635)
Trewavas, Ethelwynn. 1982. "Tilapias: taxonomy and speciation". The biology and culture of tilapias. ICLARM Conf. Proc. 7 (crc01721)
Trewavas, Ethelwynn. 1983. "Nouvel examen des genres et sous-genres du complexe Pseudotropheus-Melanochromis du lac Malawi". Revue française d'Aquariologie et Herpetologie. 10(4):97-106 (crc00184) (abstract)
Trewavas, Ethelwynn. 1983. "Tilapiine fishes of the genera Sarotherodon, Oreochromis and Danakilia". Tilapiine fishes of the genera Sarotherodon, Oreochromis and Danakilia. 1-583 (crc00692)
Trewavas, Ethelwynn. 1984. "Un nom et une description pour l'Aulonocara (sulphur-head), Poisson cichlide du lac Malawi". Revue française d'Aquariologie et Herpetologie. 11(1):7-10 (crc00211)
Trewavas, Ethelwynn. 1991. "The genus Tyrannochromis Eccles & Trewavas, 1989". The Cichlids Yearbooks. 1:36-39 (crc00757)
Trewavas, Ethelwynn & G.G. Teugels. 1991. "Danakilia, Oreochromis, Sarotherodon". Check-list of the freshwater fishes of Africa (CLOFFA). 75307-346:425-437 (crc00998)
Trewavas, Ethelwynn. 1992. "Spawning techniques in mouthbrooders 1. Fertilization in mouthbrooding cichlids". The Cichlids Yearbooks. 2:93-96 (crc00839)