TOCKUS

(Bucerotidae; Ϯ Red-billed Hornbill T. erythrorhynchus) "Les nègres du Sénégal lui ont donné le nom de tock, & nous avons cru devoir de lui conserver" (de Buffon 1770-1783) (cf. "Buceros galeatus [= Rhinoplax vigil] ... This species is called Toko ...  in Sumatra" (Raffles 1822)); "Sous-genre. TOCK; Tockus.  Bec recourbé, élevé, très-comprimé, à arête vive, à bords lisses et dentelés.   1. CALAO TOCK; Buceros erythrorhynchus, Briss., pl. 46, fig. 2. Enl., 260; Levaill., pl. 238; Buceros nasutus, Var. B.  ...  Habite le Sénégal" (Lesson 1830); "Tockus Lesson, Traité d'Orn., livr. 4, 1830, p. 252. Type, by subsequent designation, Buceros erythrorhynchus Brisson i.e. Temminck. (G. R. Gray, List Gen. Bds., 1840, p. 50.)" (Peters 1945, V, 254).
Var. Toccus, Tocus (variant French name "Toc"), Poccus.
Synon. Alophius, Nototockus, Xanthorhynchus.

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 10 December 2018).