Cyttarocylis Fol, 1881

 

  Cyttarocylis acuminata Daday, 1887 (3)

  Cyttarocylis brandti Kofoid & Campbell, 1929 (3)

  Cyttarocylis eucecryphalus (Haeckel, 1873) (3)

 

Petalotricha Kent, 1882

 

  Petalotricha ampulla (Fol, 1881) (3)

  Petalotricha maior Jörgensen, 1924 (3)