Ptychidio longibarbus

{{Short description|Species of fish}}

{{Speciesbox

|image =

|genus = Ptychidio

|species = longibarbus

|authority = Chen & Chen, 1989

}}

Ptychidio longibarbus is a species of cyprinid of the genus Ptychidio.{{FishBase|id=60451|genus=Ptychidio|species=longibarbus|month=October|year=2019}} It inhabits China, has a maximum length of {{convert|16.8|cm|in}} and is considered harmless to humans.