ambriaelacus, Gymnocephalus Geiger [M. F.] & Schliewen [U. K.] 2010:127, Fig. 8a [Spixiana (München) v. 33 (no. 1); ref. 30887] River Isar catchment area, Lake Ammersee, east shore near Ried, Bavaria, Germany, 48°00'21"N, 11°08'29"E, depth about 5 meters. Holotype: ZSM 33199. Paratypes: CU-RY uncat. [ex ZSM 33834] (2); SMF 32879 [ex ZSM 38781] (2); ZSM 32824 (4), 33314 (10), 33834 (11, now 8), 38522 [ex ZSM 33199] (2), 38781 (10, now 8) . Plus additional non-type material. Type catalog: Neumann 2011:275 [ref. 31652]. •Valid as Gymnocephalus ambriaelacus Geiger & Schliewen 2010. Current status: Valid as Gymnocephalus ambriaelacus Geiger & Schliewen 2010. Percidae: Percinae. Distribution: Lake Ammersee, upper Danube River basin, southern Germany. Habitat: freshwater.