The Pao genus contains mostly freshwater pufferfish, with the exception of one (P.leiurus) which can also be found in brackish waters. Until 2013, species from this genus were generally assigned to the Tetraodon genus.
There are 15 recognised species in the Pao genus:
Pao abei
Pao palembangensis (Dragon puffer, Humpback Puffer)
Pao cochinchinensis
Pao baileyi (Hairy puffer)
Pao barbatus
Pao cambodgiensis
Pao bergii
Pao palustris
Pao leiurus
Pao brevirostris
Pao fangi
Pao hilgendorfii
Pao ocellaris
Pao suvattii (Arrowhead puffer, Pignose puffer)
Pao turgidus
