 Among these are three that are considered entirely extinct (Chinese paddlefish, "Anabarilius liui liui" and "Atrilinea macrolepis"), two that are extinct in the wild ("Anabarilius polylepis", "Schizothorax parvus"), four that are critically endangered "Euchiloglanis kishinouyei", "Megalobrama elongata", "Schizothorax longibarbus" and "Leiocassis longibarbus").Additionally, both the Yangtze sturgeon and Chinese sturgeon are considered critically endangered by the IUCN.The survival of these two sturgeon may rely on the continued release of captive bred specimens.