Ceycalcyon

(syn. Ceyx Ϯ Northern Indigo-banded Kingfisher C. cyanopectus) Genus Ceyx de Lacépède, 1799, kingfisher; genus Alcyone Swainson, 1837, kingfisher; "The next group has the upper mandible dark, the lower light, with the upper coloration as in the preceding, but reddish underneath, with a sexual blue breast band. The bill is long and of medium width. This species has been the cause of much discussion, first as to its location in Ceyx or Alcyone, and then as to the sexual differences in coloration. It recalls very forcibly in detail the true Alcedo, and may be a direct three-toed derivative of that genus. It requires, however, a new name, and I propose Ceycalcyon, gen. nov.  and name Ceyx cyanopectus Lafresnaye as type.  C. steerii Sharpe may be a subspecies." (Mathews 1918).

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 11 December 2018).