Taxonomic notes and nomenclatural corrections in Crustacea: Isopoda (exclusive of Oniscidea) Author Boyko, Christopher B. Department of Biology, Hofstra University, 1000 Hempstead Turnpike, Hempstead, NY 11549 USA; Division of Invertebrate Zoology, American Museum of Natural History, 200 Central Park West, New York, NY 10024 USA text Zootaxa 2024 2024-08-26 5497 3 409 425 http://dx.doi.org/10.11646/zootaxa.5497.3.6 journal article 302057 10.11646/zootaxa.5497.3.6 3296fad4-c0a1-4d3e-a341-50527a0befac 1175-5326 13618764 41B7F358-AFA2-465F-9EE3-8ABF7F84105F Oniscus serratus O. Fabricius, 1780 [ Amphipoda : Acanthonotozomatidae ] and Oniscus serratus J. C. Fabricius, 1787 [ Sphaeromatidae ] Remarks: Oniscus serratus J. C. Fabricius 1787 is the type of Sphaeroma Bosc, 1801 by subsequent designation of Latreille (1810) fide ICZN Opinion 1574 (ICZN 1990) and the name was placed on the Official List of Specific Names in Zoology, although the date of Bosc in the Opinion was given as 1802 but was subsequently shown to be 1801 ( Low 2012 ). What has apparently escaped notice is that Oniscus serratus J. C. Fabricius, 1787 is a junior primary homonym of Oniscus serratus O. Fabricius, 1780 (as “ Oniscvs serratvs ”). However, the junior homonym cannot be replaced without an application to the ICZN (ICZN Article 23.9.5.) as the two taxa are currently in different genera as well as different orders within Peracarida as Acanthonotozoma serratum (O. Fabricius, 1780 ) ( Amphipoda ) and Sphaeroma serratum (J.C. Fabricius, 1787 ) ( Isopoda ).