(Picidae; Ϯ Three-toed Woodpecker P. tridactylus) Genus Picus Linnaeus, 1758, woodpecker; Gr. -οιδης -oidēs  resembling. The Three-toed Woodpecker was originally described by de Lacépède as being in an order (with CorvusCoraciasParadiseaSittaBuphaga) separate from the other woodpeckers in Order IV. “Comparative names.  ...  names, no less than the definitions of objects, should, where practicable, be drawn from positive and self-evident characters, and not from a comparison with other objects, which may be less known to the reader than the one before him ... The names Picoides ... Pseudoluscinia ... are examples of this objectionable practice” (Strickland Code 1842); "ORDRE XI.  ...  46. PICOÏDE, Picoïdes.  Langue très-longue, extensible, ronde et garnie à son extrémité de petites pointes recourbées en arrière; chaque pied ne présentant que trois doigts" (de Lacépède 1799); "Picoïdes Lacépède, Tabl. Ois., 1799, p. 7. Type, by subsequent designation, Picus tridactylus Gmelin i.e. Picus tridactylus Linné. (G. R. Gray, List Gen. Bds., 1840, p. 54.)" (Peters 1948, VI, 215).
Synon. Apternus, Dryocolaptes, Pipodes, Tridactylia, Yungipicus.

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 18 December 2018).