oe este 
Familia: Paraisotrichide CUNHA, 1916 
Paraisotricha FLORENTINI, 1890 
Blepharocorys BUNDLE, 1895 
Familia: Cyathodiniidæ CUNHA, 1914 
Cyathodinium CUNHA, 1914 
Sub-ordem: Astomata 
Familia: Enterophryide HASSEL- 
MANN, 1918 
Enterophyra HASSELMANN, 1918 
Ordem Pycnotrichidea POCHE 1913. 
Familia: Pycnotrichidae POCHE 1913. 
Pycnothrix SCHUBLATZ, 1908. 
Ordem Heterotricha. 
Familia: Plagiotomatidae POCHE, 1913 
Nyctotherus LEIDY. 
Familia: Bursariidae KENT, 1880. 
Balantidium CLAPAREDE e LA- 
MAN, 1858. 
Ordem Oligotricha. 
Familia: Ophryoscolecidae CLAUS, 1874. 
Ophryoscolex STEIN, 1858. 
Entodinium STEIN, 1858. 
Diplodinium SCHUBERG, 1888. 
Trogloditella BRUMPT & JOYEUX. 
Metadinium AWERINZEW & MU- 
TAFOWA. 
Cunhaia HASSELMANN, 1918. 
Familia: Cycloposthiidae POCHE, 1913. 
Cycloposthium BUNDLE, 1896. 
Prototapirella CUNHA, 1918. 
