is a species of the class Trepaxonemata in the family Polycystididae and order Neoophora.
Opisthocystis abyssalis
Opisthocystis aleksandri
Opisthocystis angarensis
Opisthocystis bilobata
Opisthocystis campanulata
Opisthocystis cariottus
Opisthocystis curvistylus
Opisthocystis drobyshevae
Opisthocystis evdonini
Opisthocystis goettei
Opisthocystis hendelbergi
Opisthocystis humilistylus
Opisthocystis igori
Opisthocystis intersticialis
Opisthocystis joffei
Opisthocystis kornilorum
Opisthocystis kotikovae
Opisthocystis marinae
Opisthocystis meyeri
Opisthocystis multifidus
Opisthocystis novikovae
Opisthocystis novitzkyi
Opisthocystis octopropagostylus
Opisthocystis pedistylus
Opisthocystis riegeri
Opisthocystis sabussovi
Opisthocystis seehauseni
Opisthocystis selavinovae
Opisthocystis sokolovi
Opisthocystis stepashi
Opisthocystis sturmbaueri
Opisthocystis trifida
Opisthocystis trifidostylus
Opisthocystis umylinae
Opisthocystis votyakovi
Opisthocystis wilkei
Opisthocystis zerbstboroffkae