In China, Opsariichthys uncirostris is a wrong record,all the fishes called horsemouth fish in northeastern China is Opsariicjthys bidens.
In Taiwan,the Candidia sp also is called horsemouth fish and a new species named Opsariichthys hainanensis was be find in Hainan island.
Opsariichthys uncirostris amurensis is invalid subspecies.
China has not Opsariichthys uncir ...
南方马口鱲(Opsariichthys uncirostris bidens) isn't a valid subspecies,Opsariichthys bidens is a separate valid species , have no difference between north and south.
鱲 in chinese mean all Opsariichthys and Zacco species .Also includes Barilius、Candidia、Nipponocypris、Parazacco、Raiamas species. It is a scientific term.Named for the fish.
But fans called, in general, does not include Opsariichthy bidens and O.uncirostris.
YES, There is common nonscientific related Chinese name for Zacco/small mouth Opsariichthys species。
BTW
Genus Zacco in chinese is 鱲属,鱲=Zacco,属=Genus
Genus Opsariichthys in chinese is 马口鱲属,马口鱲=Opsariichthys,mean“some fish look like Zacco but they have a big mouth like horse”.Because in this geuns the first to be named is O.uncirostris.