A generic homonym concerning chordeumatid millipedes (Arthropoda: Diplopoda) and ophellid worms (Annelida: Polycheata) Author Brewer, Michael S. Author Sierwald, Petra Author Bond, Jason E. text Zootaxa 2011 2744 65 68 journal article 10.5281/zenodo.206684 fe0f30fd-0214-4437-8ea2-cd5d02e4192d 1175-5326 206684 Euzonus collulum Menge, 1854 Euzonus collulum Menge, 1854 : 14 . Prussian/Baltic Amber Euzonus collulum — Bronn, 1853 –56: 623 Euzonus zonatus (err. pro collulum )— Giebel, 1856 : 487 . Prussian/Baltic Amber Euzonus collulum — Scudder, 1885 : 731 , listed horizon as Ligurian Euzonus collulum — Scudder, 1886a : 730 , non vidi , fide Scudder, 1891 :239 Euzonus collulum — Scudder, 1886b : 17 Euzonus collulum — Scudder, 1891 : 239 Euzonus zonatus Giebel, 1856 — Scudder, 1891 :239 , erroneously citing Giebel as the author for a second species in the genus. Euzonus collulum —Hoffman, 1969: R594. The genus Euzonus contains a single species known from Baltic amber. Giebel (1856) cites Euzonus zonatus with Menge as the species’ author and as the only species included in the genus Euzonus . He clearly referred to Menge’s description of E . collulum , listing the correct page number of the first description. Scudder (1886b:17) and Hoffman (1969) listed only collulum as a member of the genus. However, Scudder (1891: 239) listed two species in the genus Euzonus , attributing Euzonus zonatus to Giebel, 1856 . The type specimen of Euzonus collulum may be preserved in Menge’s collection that was apparently deposited in the Westpreußische Provinzialmuseum , Danzig (Gdańsk, Poland , see Bronn 1853 –1856: 623). Dunlop (2006: 168) reported that Menge’s material was dispersed after the second world war in several collections. The family name Lysiopeltidae, as used by Scudder (1886b , 1891 ), is an error for the family name Lysiopetalidae (= Callipodidae ) and is not an available name (ICZN, Article 19).