(Apodidae; Ϯ Philippine Spine-tail Swift M. picina) Lt.-Col. Edgar Alexander Mearns (1858-1916) US Army 1883-1909, surgeon, collector in Mexico 1892-1894, the Philippines 1903-1907, and tropical Africa 1909-1911. "dd. Size smaller (wing less than 170 mm., the wing relatively very long); tenth (outermost) primary distinctly shorter than ninth; distance from tips of longest secondaries to tip of longest primary much more than two-thirds the total length of wing; tail only one-sixth as long as wing, the longest coverts reaching nearly to its tip; no white on under tail-coverts or flanks.  Mearnsia (extralimital).e   ...   eNew genus. Dedicated to Dr. Edgar A. Mearns, U. S. A., not only in recognition of his valuable services to ornithology, but also as a token of the author's high esteem.  (Type, Chætura picina Tweeddale.)" (Ridgway 1911).
Synon. Papuanapus.

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 19 December 2018).