Species that contain: Gymnocephalus and cernuus [ 7 ] records

cernua, Perca Linnaeus [C.] 1758:294 [Systema Naturae, Ed. X v. 1; ref. 2787] European lakes. Syntypes: BMNH 1853.11.12.5 [Gronovius coll.] (1, skin), LS 2 (left half-skin). Type catalog: Wheeler 1958:219 [ref. 13434], Wheeler 1985:51 [ref. 20705]. The name cernua is a noun [as described by Linnaeus with a capital C]; see also Kottelat & Freyhof 2009:85 [ref. 30320]. •Valid as Acerina cernua (Linnaeus 1758) -- (Berg 1949:1046 [ref. 20662], Zhu 1995:172 [ref. 25213], Zhang et al. 2016:195 [ref. 34477]). •Valid as Gymnocephalus cernua (Linnaeus 1758) -- (Collette & Bănărescu 1977:1453 [ref. 5845], Coad 1981:16 [ref. 22348], Lelek 1987:285 [ref. 22962], Mitrofanov & Dukravec 1989:191 [ref. 37748], Page & Burr 1991:276 [ref. 18983], Coad 1995:27 [ref. 23608], Chereshnev 1996:606 [ref. 24659], Kottelat 1997:172 [ref. 22952], Reshetnikov et al. 1997:749 [ref. 24702], Popova 1998:117 [ref. 23588], Scott & Crossman 1998:viii [ref. 24570], Fuller et al. 1999:385 [ref. 25838], Lyons et al. 2000:57 [ref. 26594], Novikov et al. 2000:161 [ref. 40929] as cernuus, Bogutskaya et al. 2001:47 [ref. 26178], Chereshnev et al. 2001:122 [ref. 26736], Bianco & Ketmaier 2001:201 [ref. 26728], Hanel 2003:64 [ref. 27894], Parin 2003:S3 [ref. 28536], Bailey et al. 2004:199 [ref. 27882], Nelson et al. 2004:136 [ref. 27807], Bogutskaya & Naseka 2004:205 [ref. 28183], Vassilev & Pehlivanov 2005:177 [ref. 28369], Hanel & Lusk 2005:362 [ref. 28804], Kottelat 2006:90 [ref. 28831], Fricke 2007:29 [ref. 30577], Fricke et al. 2007:81 [ref. 29533], Kottelat & Freyhof 2007:528 [ref. 29996], Kottelat & Freyhof 2009:85 [ref. 30320], Scharpf 2008:35 [ref. 30399], Geiger & Schliewen 2010:131 [ref. 30887], Page & Burr 2011:511 [ref. 31215] as cernua, Page et al. 2013:140 [ref. 32708], Parin et al. 2014:354 [ref. 33547], Barbieri et al. 2015:102 [ref. 35029], Çiçek et al. 2015:151 [ref. 35151], Romanov et al. 2017:826 [ref. 35687], Dolgov et al. 2018:185 [ref. 41055], Ćaleta et al. 2019:188 [ref. 37026], Lorenzoni et al. 2019:253 [ref. 37108], Arab et al. 2020:[1] [ref. 37636] as cernuus, Çiçek et al. 2021:48 [ref. 38063], Çiçek et al. 2022:5 [ref. 38985], Pozdeev et al. 2022:6 [ref. 39511], Çiçek et al. 2023:55 [ref. 40326], Çiçek et al. 2023:449 [ref. 40625], Nagy et al. 2023:358 [ref. 40348]). Current status: Valid as Gymnocephalus cernua (Linnaeus 1758). Percidae: Percinae. Distribution: Europe. Introduced elsewhere. Habitat: freshwater, brackish.

czekanowskii, Acerina Dybowski [B. N.] 1874:383 [Verhandlungen der K.-K. zoologisch-botanischen Gesellschaft in Wien v. 24 (no. 3-4); ref. 1172] Middle and lower Angara River, Siberia, Russia. Syntypes: whereabouts unknown. Original as czekanowskü. •Synonym of Acerina cernua (Linnaeus 1758) -- (Berg 1949:1046 [ref. 20662]). •Synonym of Gymnocephalus cernuus (Linnaeus 1758) -- (Kottelat 1997:172 [ref. 22952]). •Synonym of Gymnocephalus cernua (Linnaeus 1758) -- (Parin et al. 2014:354 [ref. 33547]). Current status: Synonym of Gymnocephalus cernua (Linnaeus 1758). Percidae: Percinae. Habitat: freshwater, brackish.

essipovi, Acerina cernus Burmakin [E. V.] 1941:156, Fig. 2 [Trudy Instituta polyarnogo zemedeliya v. 15; ref. 21765] Gyda Bay basin, Arctic Ocean; Yuribei River, Siberia, Russia. Syntypes: (5) whereabouts unknown. •Synonym of Acerina cernua (Linnaeus 1758) -- (Berg 1949:1047 [ref. 20662]). •Synonym of Gymnocephalus cernuus (Linnaeus 1758) -- (Kottelat 1997:172 [ref. 22952], Parin 2003:S3 [ref. 28536]). •Synonym of Gymnocephalus cernua (Linnaeus 1758) -- (Parin et al. 2014:354 [ref. 33547]). Current status: Synonym of Gymnocephalus cernua (Linnaeus 1758). Percidae: Percinae. Habitat: freshwater, brackish.

fischeri, Acerina Eichwald [C. E. von] 1873:15, Pl. 2 [Archives de zoologie expérimentale et générale (Paris) v. 2; ref. 20999] Lakes of the Tomsk Province, Russia. No types known. •Synonym of Acerina cernua (Linnaeus 1758) -- (Berg 1949:1046 [ref. 20662]). •Synonym of Gymnocephalus cernuus (Linnaeus 1758) -- (Kottelat 1997:172 [ref. 22952]). Current status: Synonym of Gymnocephalus cernua (Linnaeus 1758). Percidae: Percinae. Habitat: freshwater, brackish.

fluviatilis, Cernua Fleming [J.] 1828:212 [A history of British animals; ref. 1339] Rivers of England. No types known. Based in part on Perca cernua Linnaeus 1758. •Synonym of Gymnocephalus cernuus (Linnaeus 1758) -- (Kottelat 1997:172 [ref. 22952]). Current status: Synonym of Gymnocephalus cernua (Linnaeus 1758). Percidae: Percinae. Habitat: freshwater, brackish.

post, Holocentrus Lacepède [B. G. E.] 1802:330, 357 [Histoire naturelle des poissons (Lacepède) v. 4; ref. 4929] Regarded as an unneeded new name for Perca cernua Linnaeus 1758. •Synonym of Gymnocephalus cernuus (Linnaeus 1758) -- (Kottelat 1997:172 [ref. 22952]). Current status: Synonym of Gymnocephalus cernua (Linnaeus 1758). Percidae: Percinae. Habitat: freshwater, brackish.

vulgaris, Acerina Cuvier [G.] in Cuvier & Valenciennes 1829:4, Pl. 41 [Histoire naturelle des poissons v. 3; ref. 4879] Europe. Syntypes: MNHN 0000-6604 (1), 0000-6607 (3). Type catalog: Bauchot & Desoutter 1987:79-80 [ref. 12478]. Based on specimens and literature sources. •Synonym of Acerina cernua (Linnaeus 1758) -- (Berg 1949:1046 [ref. 20662]). •Synonym of Gymnocephalus cernuus (Linnaeus 1758) -- (Kottelat 1997:172 [ref. 22952], Popova 1998:117 [ref. 23588]). Current status: Synonym of Gymnocephalus cernua (Linnaeus 1758). Percidae: Percinae. Habitat: freshwater, brackish.