Pelmatosphaera Caullery & Mesnil, 1904 Pelmatosphaera polycirri Caullery & Mesnil, 1904
Porodica Pelmatosphaeridae Stunkard, 1937 Rodovi: Pelmatosphaera
Koljeno Placozoa Grell, 1971 Rod Trichoplax
Pleodicyema Nouvel, 1961 Pleodicyema delamarei Nouvel, 1961
Prothelminthus Jourdain, 1880 Sinonim Prothelminthus hessi Jourdain, 1880 = Intoshia leptoplanae Giard, 1877
Pseudicyema Nouvel, 1933 Pseudicyema cappacephalum Furuya, 2009 Pseudicyema nakaoi Furuya, 1999 Pseudicyema truncatum (Whitman, 1883)
Izvori