The currently recognized species in this genus are:2
Nelson, Joseph S.; Grande, Terry C.; Wilson, Mark V. H. (2016). Fishes of the World (5th ed.). Hoboken: John Wiley and Sons. pp. 357–358. doi:10.1002/9781119174844. ISBN 978-1-118-34233-6. 978-1-118-34233-6 ↩
Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Iso". FishBase. June 2012 version. /wiki/Rainer_Froese ↩