FAMILY                      Cystoopsidae Skrjabin, 1923 [ref. David Spratt Australia]
                            [=Dioctowittinae Chabaud & Le Van Hoa, 1960]
GENUS                              Cystoopsis Wagner, 1867 [Zykov 1902?]
                                   [=Cysstoopis Linstow, 1902:452]
                                   [=Cytoopsis Melnikoff, 1871:6]
                                   [=Cytopsis] [lapsus; Yorke & Maplestone 1926 p.444; Marshall 1873]
TYPE SPECIES                            Cystoopsis acipenseris Wagner, 1867 [ Janicki & Rasin 1930; primary host Acipenser huso; secondary host Dikerogammarus haemobaphes]
SPECIES                                 Cystoopsis atractostei Moravec & Salgado-Maldonado, 2003:137 [Parasite of Atractosteus tropicus in Pisces]
SPECIES                                 Cystoopsis scomber Zlatev, 1936
GENUS                              Dioctowittus Chabaud & Hoa, 1960:1839
SPECIES                                 Dioctowittus chabaudi Bain & Ghadirian, 1967
SPECIES                                 Dioctowittus denisoniae Jones, 1978:141 [reptilian host]
SPECIES                                 Dioctowittus hughjonesi Mulder & Smales, 2006:235 [Northern Territory; Parasite of Liasis fuscus (Reptilia)]
SPECIES                                 Dioctowittus wittei Chabaud & Le Van Hoa, 1960