(Psittacidae; Ϯ Horned Parakeet E. cornutus) Gr. ευ eu  ideal, true; genus Nymphicus Wagler, 1832, cockatiel; "EUNYMPHICUS NOMEN NOV 3    cf. Salvadori, Cat. Bds. Brit. Mus., 20, 1891, p. 590-592. (sub nom. Nymphicus.)   ...   3 Replaces Nymphicus of authors, not of Wagler [1832], of Sharpe's Hand-list. Related to Cyanoramphus Bonaparte but loreal region less densely feathered, upper mandible distinctly notched; a coronal crest of two or more elongated feathers.  Type, Psittacus cornutus Gmelin." (Peters 1937, III, 269).   
Synon. Nymphicus, Plectolophus.

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 on 16 December 2018).