regia

L. regius  royal  < rex, regis  king  < regere  to rule.
● ex Sterna cayana Audubon, 1835 (syn. Thalasseus maximus).
● ex “Veuve de la Côte d’Afrique” of Brisson 1760 (Vidua).

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2018). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2018). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from www.hbw.com on 14 December 2018).