Oxygeneum Forbes [S. A.] 1885:136 Neut. Oxygeneum pulverulentum Forbes 1885. Type by monotypy. Apparently based on a hybrid between Campostoma and Chrosomus (see Hubbs & Bailey 1952 [ref. 10843], Gilbert 1998:18 [ref. 23395]). •Invalid, based on an intergeneric hybrid. Current status: Uncertain. Leuciscidae.