(Laridae; Ϯ Common White Tern G. alba candida) Gr. γυγης gugēs mythical water-bird mentioned by Dionysius. "6. Genus. Gygis, Wagl.,  Seidenschwalbe (Nov. gen.)  Rostrum subulatum, apice compressum; digiti et tarsus breves; ungues magni; ptilosis unicolor, candida, sericea; pedes (coerulei) et rostrum bicolores; cauda forficata. — Species libenter arboribus insidet!   Species: 1. Gyg. candida. (Sterna candida R. Forst. in manuscr., Gmel.)  ...  Habitat in insulis Eacowe, Tonga-Tabu, Waihòo, Waitahòo, Otaheitee, Huaheine caet., ubi adpellatur Plerae , (Tera-pòpa in Bolabola); arboribus insidet." (Wagler 1832); "Gygis Wagler, Isis von Oken, 1832, col. 1223. Type, by monotypy, Sterna candida Gmelin." (Peters 1934, II, 348).
Var. Gyges.
Synon. Alphagygis, Leucanous.

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2019). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2019). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 5 December 2019).