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August von Pelzeln was an Austrian ornithologist. He studied at the University of Vienna, later working as an assistant under helminthologist Karl Moriz Diesing in the Hof-Naturalien-Cabinet from 1851. In 1857 he acquired curatorial duties formerly held by Johann Jakob Heckel, and subsequently became in charge of the bird (1857) and mammal (1869) collections. He worked on the birds collected by Johann Natterer in Brazil (343 species)

Wilhelm Karl Hartwich (or Hartwig) Peters was a German naturalist and explorer. He was assistant to the anatomist Johannes Peter Müller and later became curator of the Berlin Zoological Museum. Encouraged by Müller and the explorer Alexander von Humboldt, Peters travelled to Mozambique via Angola in September 1842, exploring the coastal region and the Zambesi River. He returned to Berlin with an enormous collection of natural history specimens, which he then described in Naturwissenschaftliche Reise nach Mossambique... in den Jahren 1842 bis 1848 ausgeführt (1852–1882). He replaced Martin Lichtenstein as curator of the museum in 1858, and in the same year he was elected a foreign member of the Royal Swedish Academy of Sciences. In a few years, he greatly increased the Berlin Museum's herpetological collection to a size comparable to those of Paris and London. Herpetology was Peters' main interest, and he described 122 new genera and 649 species from around the world