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Message: <blockquote data-quote="l_raty" data-source="post: 3343365" data-attributes="member: 24811">There used to be a wide understanding that the same classical word could not be used in two names, even if the transcription (ie, the spelling) differed. (No such rule exists nowadays of course. Generic names that differ in a single letter are not homonyms. For specific names, it's a bit more complex.)Additionally, under <a href="http://biodiversitylibrary.org/page/11269400" target="_blank">Apos SCOP.</a>, Scopoli cited sources that had used "Apus" ("MONOCULUS Apus Linn.", Schaeffer's <a href="https://books.google.com/books?id=2u5AAAAAcAAJ&pg=PA18&q=Apus#v=snippet&q=Apus&f=false" target="_blank">Der fischförmische Kiefenfuß</a>). And Cuvier (<a href="http://biodiversitylibrary.org/page/27238526" target="_blank">1798</a> and <a href="http://biodiversitylibrary.org/bibliography/49450" target="_blank">1800</a>) subsequently turned the name into Apus.Many of the Apus and Micropus were placed on the <a href="http://iczn.org/sites/iczn.org/files/officialists.pdf" target="_blank">Official List / Index</a> as a result of <a href="http://biodiversitylibrary.org/page/34986784" target="_blank">Opinion 502</a>.<a href="http://gallica.bnf.fr/ark:/12148/bpt6k53618f/f406" target="_blank">Apus</a> in Pierre Bellon's L'histoire de la nature des oyseaux (1555) is the swift. <a href="http://biodiversitylibrary.org/page/11269479" target="_blank">Apus</a> was attributed to Bellon by Scopoli 1777, hence "Apus ex Bellon". Of course Bellon is pre-Linnean; thus, for nomenclature purposes, the author of the name is Scopoli.</blockquote>

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