Pa
, Paracolurella , Paradicranophorus , Pararotatoria , Paraseison , Parencentrum
Pe
, Pedipartia , Pentatrocha
Ph
, Philodina , Philodinavidae , Philodinavus , Philodinidae
Pl
Plationus Segers, Murugan and Dumont, 1993
- Plationus felicitas (Wulfert 1956)
- Plationus patulus (Müller 1786)
- Plationus patulus macracanthus (Daday 1786)
- Plationus patulus patulus (Müller 1786)
- Plationus polyacanthus (Ehrenberg 1834)
Rotifera → Eurotatoria → Ploima → Brachionidae , Platyias , Pleurata , Pleuretra , Pleurotrocha , Pleurotrochopsis , Ploesoma
Red Ploima Hudson & Gosse, 1886
- Asciaporrectidae De Smet, 2006
- Asplanchnidae Eckstein, 1883
- Birgeidae Harring and Myers, 1924
- Brachionidae Ehrenberg, 1838
- Clariaidae Kutikova, Markevich and Spiridonov, 1990
- Cotylegaleatidae De Smet, 2007
- Dicranophoridae Harring, 1913
- Epiphanidae Harring, 1913
- Euchlanidae Ehrenberg, 1838
- Gastropodidae Harring, 1913
- Ituridae Harring & Myers, 1928
- Lecanidae Remane, 1933
- Lepadellidae Harring, 1913
- Lindiidae Harring & Myers, 1924
- Microcodidae Hudson & Gosse, 1886
- Mytilinidae Harring, 1913
- Notommatidae Hudson & Gosse, 1886
- Proalidae Harring & Myers, 1924
- Scaridiidae Manfredi, 1927
- Synchaetidae Hudson & Gosse, 1886
- Tetrasiphonidae Harring & Myers, 1924
- Trichocercidae Harring, 1913
- Trichotriidae Harring, 1913
Rotifera → Eurotatoria → Monogononta → Pseudotrocha
Po
, Polyarthra , Pompholyx , Pourriotia
Pr
, Proales , Proalidae , Proalides , Proalinopsis
Ps
, Pseudoembata , Pseudoeuchlanis , Pseudoharringia , Pseudoploesoma
Pt
, Ptygura