1. Species Peridiniopsis amazonica Barbara Meyer, 1997
2. Species Peridiniopsis armata (Levander) J.Stein & Borden
3. Species Peridiniopsis armebeensis Ten-Hage, P.K.Da & Couté, 2007
4. Species Peridiniopsis borgei Lemmermann, 1904
5. Species Peridiniopsis brigantino-armata (M.Lefèvre) Moestrup & Calado, 2018
6. Species Peridiniopsis charkowiensis (Matvienko) Bourrelly, 1968
7. Species Peridiniopsis cristata (Balech) Bourrelly, 1968
8. Species Peridiniopsis elpatiewskyi (Ostenfeld) Bourrelly, 1968
9. Species Peridiniopsis hiemalis (J.Schiller) Moestrup & Calado, 2018
10. Species Peridiniopsis inaequalis (Chodat) J. Stein & Borden, 1980
11. Species Peridiniopsis kulczynskii (Woloszynska) Bourrelly, 1968
12. Species Peridiniopsis lindemannii (M.Lefèvre) Bourrelly, 1968
13. Species Peridiniopsis lubiniensiformis (Diwald) Bourrelly, 1968
14. Species Peridiniopsis penardiformis (Lindemann) Bourrelly
15. Species Peridiniopsis pygmaea (Er.Lindemann) Bourrelly, 1968
16. Species Peridiniopsis quadridens (F.Stein) Bourrelly, 1968
17. Species Peridiniopsis quinquecuspidata (Nygaard) Gert Hansen & Flaim, 2007
18. Species Peridiniopsis salina J.M.Trigueros
19. Species Peridiniopsis sphaeroidea Bourrelly, 1968
20. Species Peridiniopsis thompsonii Bourrelly ex Carty, 2014
21. Species Peridiniopsis viguieri (M.Lefèvre) Bourrelly, 1968
22. Species Peridiniopsis aculeatum (Stein) Borrouelly, 1968 accepted as Peridiniopsis oculata (Stein) Bourrelly, 1968 accepted as Durinskia oculata (F.Stein) Gert Hansen & G.Flaim, 2007 (synonym)
23. Species Peridiniopsis asymmetrica Lebour, 1922 accepted as Dissodium asymmetricum (Mangin) Loeblich III, 1970 accepted as Diplopsalopsis bomba (Stein) J.D.Dodge & S.Toriumi, 1993 (synonym)
24. Species Peridiniopsis asymmetrica Mangin, 1911 accepted as Diplopsalopsis bomba (Stein) J.D.Dodge & S.Toriumi, 1993 (Synonym)
25. Species Peridiniopsis berolinense (Lemmermann) Bourrelly, 1968 accepted as Tyrannodinium edax (A.J.Schilling) Calado, 2011 (synonym)
26. Species Peridiniopsis berolinensis (Lemmermann) Bourrelly, 1968 accepted as Tyrannodinium edax (A.J.Schilling) Calado, 2011
27. Species Peridiniopsis corillionii M.Leitão, Ten-Hage, Mascarell & Couté, 2001 accepted as Unruhdinium kevei (Grigorszky & F.Vasas) Gottschling, 2017
28. Species Peridiniopsis cristatum (Balech) Bourrelly, 1968 accepted as Peridiniopsis cristata (Balech) Bourrelly, 1968
29. Species Peridiniopsis cunningtonii Lemmermann, 1907 accepted as Parvodinium cunningtonii (Lemmermann) Pandeirada, Craveiro, Daugbjerg, Moestrup & A.J.Calado, 2022
30. Species Peridiniopsis dinobryonis (Woloszynska) Bourrelly, 1968 accepted as Staszicella dinobryonis Woloszynska, 1916
31. Species Peridiniopsis durandii S.Rodriguez, Couté, Ten-Hage & G.Mascarell, 1999 accepted as Unruhdinium durandii (S.Rodriguez, Couté, Ten-Hage & Mascarell) Moestrup & Calado, 2018
32. Species Peridiniopsis edax (A.J.Schilling) Bourrelly, 1968 accepted as Tyrannodinium edax (A.J.Schilling) Calado, 2011 (synonym)
33. Species Peridiniopsis excentrica F.J.R.Taylor, 1976 accepted as Dissodium excentricum (Nie) Loeblich, 1970 accepted as Gotoius excentricus (Nie) Sournia, 1984 (synonym)
34. Species Peridiniopsis hainanensis (Nie) F.J.R.Taylor, 1976 accepted as Oblea torta (Abé) Balech ex Sournia, 1973 (synonym)
35. Species Peridiniopsis jiulongensis H.Gu, 2015 accepted as Unruhdinium jiulongense (H.Gu) Gottschling, 2017 (synonym)
36. Species Peridiniopsis kevei Grigorszky & F.Vasas, 2001 accepted as Unruhdinium kevei (Grigorszky & F.Vasas) Gottschling, 2017
37. Species Peridiniopsis lenticula (Bergh) Starmach accepted as Diplopsalis lenticula Bergh, 1882 (synonym)
38. Species Peridiniopsis limnophilum (Lindemann) Bourrelly, 1968 accepted as Peridiniopsis rotunda Lebour, 1922 accepted as Oblea rotunda (Lebour) Balech ex Sournia, 1973 (synonym)
39. Species Peridiniopsis minima Qi Zhang, G.X.Liu & Z.Y.Hu, 2014 accepted as Unruhdinium minimum (Qi Zhang, G.X.Liu & Z.Y.Hu) Gottschling, 2017
40. Species Peridiniopsis niei G.X.Liu & Z.Y.Hu, 2008 accepted as Unruhdinium niei (G.X.Liu & Z.Y.Hu) Gottschling, 2017
41. Species Peridiniopsis oculata (Stein) Bourrelly, 1968 accepted as Durinskia oculata (F.Stein) Gert Hansen & G.Flaim, 2007
42. Species Peridiniopsis penardiformis (Er.Lindemann) Bourrelly, 1968 accepted as Glochidinium penardiforme (Er.Lemmermann) Boltovskoy, 2000
43. Species Peridiniopsis penardii (Lemmermann) Bourrelly, 1968 accepted as Unruhdinium penardii (Lemmermann) Gottschling, 2017
44. Species Peridiniopsis pingii (D.Nie) F.J.R.Taylor accepted as Diplopsalopsis pingii (D.Nie) J.D.Dodge & S.Toriumi, 1993 (synonym)
45. Species Peridiniopsis polonica (Woloszynska) Bourrelly, 1968 accepted as Naiadinium polonicum (Woloszynska) Carty, 2014
46. Species Peridiniopsis pulvisculus (Ehrenberg) J.Stein & Borden accepted as Glenodinium pulvisculum (Ehrenberg) Stein, 1883
47. Species Peridiniopsis reticulata (Claparède & Lachmann) Starmach accepted as Protoceratium reticulatum (Claparède & Lachmann) Bütschli, 1885 (synonym)
48. Species Peridiniopsis rhomboides Krakhmalny, 2001 accepted as Unruhdinium kevei (Grigorszky & F.Vasas) Gottschling, 2017
49. Species Peridiniopsis rotunda Lebour, 1922 accepted as Oblea rotunda (Lebour) Balech ex Sournia, 1973 (synonym)
50. Species Peridiniopsis gymnodinium (Penard) Bourrelly (uncertain)
51. Species Peridiniopsis minor (Paulsen) Starmach (uncertain)

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