Commission on Zoological Nomenclature in 1987. Consequently, later attempts to re-establish that name as a junior synonym of Aegithalos are preempted by the erection of Orites for the white-winged snowfinch by Eugen von Keyserling and Johann Heinrich Blasius in 1840. Meanwhile, Kaup's Chionospina was misspelled "Chionospiza" by George Robert Gray. As it, too, is a junior objective synonym of Montifringilla, Ludwig Reichenbach's subsequent valid establishment of that name is still inconsequential – except for purely taxonomic purposes, as it makes neither Kaup nor Grey the valid author of Chionospiza, but Reichenbach. And finally, Onychostruthus had to be established because Onychospiza, Nikolai Przhevalsky's 1876 name for the proposed monotypic genus of the white-rumped snowfinch, was preoccupied. It had been given by Rey to the chestnut-eared bunting (today Emberiza fucata) in 1872 already, as an unnecessary correction – and thus junior objective synonym – of Bonaparte's original Onychospina. Footnotes References External links Media related to Passeridae on the Internet Bird Collection Taxa named by Christian Ludwig Brehm