(Opepherotrema) (Opepherotrema) is a biological genus in the family Didymozoidae and order Azygiida.
Opepherotrema planum
Adenodidymocystis
Allometanematobothrioides
Annulocystis
Atalostrophion
Coeliodidymocystis
Coeliotrema
Colocyntotrema
Dermatodidymocystis
Didymocylindrus
Didymocystis
Gonapodasmius
Nematobothrioides
Nematobothrium
Neodiplotrema
Neonematobothrioides
Neounitubulotestis
Oesophagocystis
Opepherotrema
Opisthorchinematobothrium
Orbitonematobothrium
Ovarionematobothrium
Phacelotrema
Platocystis
Reniforma
Unitubulotestis
Univitellannulocystis
Univitellodidymocystis