danubiensis, Perca Gronow [L. T.] in Gray 1854:112 [Catalogue of fish collected and described by Laurence Theodore Gronow; ref. 1911] Danube River. Syntypes: BMNH 1853.11.12.4 [Gronovius coll.] (1, skin). Type catalog: Wheeler 1958:219 [ref. 13434] but as holotype. •Synonym of Acerina schraetser (Linnaeus 1758) -- (Wheeler 1958:219 [ref. 13434]). •Synonym of Gymnocephalus schraetser (Linnaeus 1758) -- (Kottelat 1997:172 [ref. 22952]). Current status: Synonym of Gymnocephalus schraetser (Linnaeus 1758). Percidae: Percinae. Habitat: freshwater.