Halgerda orientalis G.Y. Lin, 1991
Atagema ornata (C.G. Ehrenberg, 1831)
Halgerda orstomi S.J. Fahey & T.M. Gosliner,2000
Jorunna osae Y. Camacho-García& T.M. Gosliner, 2008
Atagema osseosa (E.F. Kelaart, 1859)
Atagema paagoumenei (J.J. Risbec, 1928)
Halgerda paliensis (H.W. Bertsch & S. Johnson,1982)
Geitodoris pallida Á. Valdés, 2001
Montereina pallida (K. Baba, 1937)
Thordisa pallida L.S.R. Bergh, 1884
Jorunna pantherina (G.F. Angas, 1864)
Atagema papillosa (J.J. Risbec, 1928)
Montereina pardalis (J. Alder & A. Hancock,1864)
Jorunna pardus D.W. Behrens& J.B. Henderson, 1981
Montereina paroa (R.F. Burn, 1969)
Jorunna parva (K. Baba, 1938)
Geitodoris patagonica N.H. Odhner, 1926
Discodoris patriziae A. Perrone, 1991
Gargamella perezi (E.M. Llera & J.A. Ortea,1982)
Geitodoris perfossa J.A. Ortea, 1990
Discodoris perplexa (L.S.R. Bergh, 1907)
Baptodoris peruviana (A.V.M.D. D'Orbigny,1837)
Rostanga phepha J.B. Garovoy, Á. Valdés& T.M. Gosliner, 2001
Baptodoris phinei Á. Valdés, 2001
Diaulula phoca (Er. Marcus & Ev. Marcus,1967)
Platydoris picta (E.F. Kelaart, 1858)
Thordisa pinguis (Er. Marcus & Ev. Marcus,1970)
Taringa pinoi A. Perrone, 1985
Geitodoris planata (J. Alder & A. Hancock,1846)
Discodoris pliconoto L. Moro & J.A. Ortea,2015
Discodoris podotria (L.S.R. Bergh, 1890)
Thordisa poplei M. Edmunds, 2011
Geitodoris portmanni (R.L. Schmekel, 1972)
Sclerodoris prea (Er. Marcus & Ev. Marcus,1967)
Discodoris pseudida (L.S.R. Bergh, 1907)