1. Species Peridinium acarnanicum Athanassopoulos, 1931
2. Species Peridinium acutum G.Karsten, 1907
3. Species Peridinium adriaticum H.Broch, 1910
4. Species Peridinium allorgei M.Lefèvre, 1927
5. Species Peridinium ampulliforme E.J.F.Wood
6. Species Peridinium asymmetrica T.H.Abé
7. Species Peridinium asymmetricum Karsten, 1907
8. Species Peridinium biconicum T.H.Abé, 1927
9. Species Peridinium bidens Lemmermann, 1910
10. Species Peridinium bipes F.Stein, 1883
11. Species Peridinium brasiliense Borics & Grigorszky, 2005
12. Species Peridinium caspicum (C.E.H.Ostenfeld) Lemmermann
13. Species Peridinium chattonii Biecheler, 1952
14. Species Peridinium chinense J.Schiller
15. Species Peridinium cinctum (O.F.Müller) Ehrenberg, 1832
16. Species Peridinium cinctus
17. Species Peridinium complanatum G.Karsten, 1907
18. Species Peridinium complanatum A.F.Meunier, 1910
19. Species Peridinium concum
20. Species Peridinium corniculum Kofoid & Michener, 1911
21. Species Peridinium corrientes Moestrup, 2018
22. Species Peridinium crenulatum Couté & A.Iltis, 1984
23. Species Peridinium cystiferum J.Pavillard, 1916
24. Species Peridinium dalei (Indel. & Loeblich) Balech
25. Species Peridinium ellipsoideum Mangin, 1913
26. Species Peridinium excavatum G.W.Martin, 1929
27. Species Peridinium exiguipes L.A.Mangin
28. Species Peridinium formosum J.Pavillard, 1909
29. Species Peridinium gaarderae Balech, 1967
30. Species Peridinium gargantua Biecheler, 1952
31. Species Peridinium gatunense Nygaard, 1925
32. Species Peridinium gracile Gran & Braarud, 1935
33. Species Peridinium gracile Meunier, 1910
34. Species Peridinium granisparsum A.F.Meunier
35. Species Peridinium gutwinskii Woloszynska, 1912
36. Species Peridinium gymnodinium (Pénard) Entz, 1904
37. Species Peridinium hindmarchii Murray & Whitting, 1899
38. Species Peridinium hyalinum Kofoid & J.R.Michener, 1911
39. Species Peridinium inaequale Fauré-Fremiet, 1908
40. Species Peridinium inaequale N.Peters, 1928
41. Species Peridinium intermedium A.Candeias, 1939
42. Species Peridinium karianum (Meunier) J.Schiller, 1935
43. Species Peridinium karianum A.G.Henckel, 1925
44. Species Peridinium karstenii Kofoid & J.R.Michener, 1911
45. Species Peridinium kofoidi Fauré-Fremiet, 1908
46. Species Peridinium koma T.H.Abé, 1927
47. Species Peridinium leiorhynchum Murray & Whitting, 1899
48. Species Peridinium levanderi Abé, 1927
49. Species Peridinium limbatum (Stokes) Lemmermann, 1900
50. Species Peridinium lingii Thomasson, 1986
51. Species Peridinium lithanthracis (Ehrenberg) Ehrenberg
52. Species Peridinium longispinum L.A.Mangin
53. Species Peridinium macrapicatum Balech, 1971
54. Species Peridinium macrospinum L.A.Mangin
55. Species Peridinium majus (P.A.Dangeard) P.A.Dangeard
56. Species Peridinium matzenaueri K.R.Gaarder
57. Species Peridinium micrapium A.F.Meunier
58. Species Peridinium minus (Paulsen) Paulsen, 1914
59. Species Peridinium minusculum J.Pavillard
60. Species Peridinium missolongicum Athanassopoulos, 1931
61. Species Peridinium monacanthum (Broch) Balech, 1972
62. Species Peridinium monas Ehrenberg
63. Species Peridinium nasutum L.A.Mangin
64. Species Peridinium nivale (Meunier) J.Schiller, 1935
65. Species Peridinium novum Chodat, 1925
66. Species Peridinium novum V.Hensen, 1895
67. Species Peridinium oamaruense (G.Deflandre) J.Schiller
68. Species Peridinium obesum Matzenauer, 1933
69. Species Peridinium obliquiforme J.Schiller
70. Species Peridinium obliquum Mangin, 1930
71. Species Peridinium obliquum P.J.L.Dangeard, 1927
72. Species Peridinium oculatum Dujardin, 1841
73. Species Peridinium pacificum Kofoid & Michener, 1911
74. Species Peridinium paracerasus Athanassopoulos, 1931
75. Species Peridinium paracranii Athanassopoulos, 1931
76. Species Peridinium paradakariense Athanassopoulos, 1931
77. Species Peridinium parainerme D.S.Nie & C.C.Wang, 1964
78. Species Peridinium perrieri Fauré-Fremiet, 1908
79. Species Peridinium persicum J.Schiller
80. Species Peridinium phalericum Athanassopoulos, 1931
81. Species Peridinium planulum J.A.M.Perty
82. Species Peridinium playfairii Lindemann, 1931
83. Species Peridinium polymorphum Er.Lindemann, 1924
84. Species Peridinium pouchetii Kofoid & Michener, 1911
85. Species Peridinium quadridentatum (F.Stein) Gert Hansen, 1995
86. Species Peridinium raciborskii Woloszynska, 1912
87. Species Peridinium robustum A.F.Meunier
88. Species Peridinium schilleri A.Böhm
89. Species Peridinium schuettii (Lemmermann) G.Karsten
90. Species Peridinium simplex Gran & Braarud, 1935
91. Species Peridinium smirnovii Skvortsov, 1957
92. Species Peridinium sociale (L.-F.Hennguy) B.Biecheler
93. Species Peridinium sphaericum Okamura, 1912
94. Species Peridinium sphaericum Meunier, 1910
95. Species Peridinium sphaeroides Dangeard
96. Species Peridinium spheroidea Abé, 1927
97. Species Peridinium spheroides P.A.Dangeard, 1927
98. Species Peridinium spirale (Gaarder) Balech
99. Species Peridinium striatum A.Böhm
100. Species Peridinium striolatum Playfair, 1920
101. Species Peridinium subsphaericum Balech, 1959
102. Species Peridinium sydneyense Thomasson
103. Species Peridinium symmetricum Halim, 1967
104. Species Peridinium tridens Ehrenberg
105. Species Peridinium trirostre Murray & Whitting, 1899
106. Species Peridinium truncatum O.Zacharias, 1903
107. Species Peridinium tsingtaoense D.S.Nie & C.C.Wang, 1964
108. Species Peridinium vexans Murray & Whitting, 1899
109. Species Peridinium volzii Lemmermann, 1905
110. Species Peridinium willei Huitfeldt-Kaas, 1900
111. Species Peridinium witoslawi E.Lindemann
112. Species Peridinium woloszynskae W.Conrad
113. Species Peridinium zonatum (Playfair) Playfair, 1920
114. Species Peridinium abei Paulsen, 1931 accepted as Protoperidinium abei (Paulsen, 1931) Balech, 1974 (synonym)
115. Species Peridinium acanthophorum Balech, 1962 accepted as Protoperidinium acanthophorum (Balech, 1962) Balech, 1974
116. Species Peridinium achromaticum Levander, 1902 accepted as Protoperidinium achromaticum (Levander) Balech, 1974
117. Species Peridinium aciculiferum Lemmermann, 1900 accepted as Apocalathium aciculiferum (Lemmermann) Craveiro, Daugbjerg, Moestrup & Calado, 2016
118. Species Peridinium acuminatum Ehrenberg, 1836 accepted as Scrippsiella acuminata (Ehrenberg) Kretschmann, Elbrächter, Zinssmeister, S.Soehner, Kirsch, Kusber & Gottschling, 2015 (synonym)
119. Species Peridinium acutipes P.-A.Dangeard, 1927 accepted as Protoperidinium acutipes (P.-A.Dangeard, 1927) Balech, 1974 (synonym)
120. Species Peridinium adeliense Balech, 1958 accepted as Protoperidinium adeliense (Balech, 1958) Balech, 1974 (synonym)
121. Species Peridinium adense Matzenauer, 1933 accepted as Protoperidinium adense (Matzenauer, 1933) Balech, 1974 (synonym)
122. Species Peridinium adriaticum Schmarda, 1846 accepted as Gymnodinium adriaticum (Schmarda) Kofoid & Swezy, 1921
123. Species Peridinium adulterum Balech, 1971 accepted as Protoperidinium adulterum (Balech, 1971) Balech, 1974 (synonym)
124. Species Peridinium aequatoriale Balech, 1971 accepted as Protoperidinium aequatoriale (Balech, 1971) Balech, 1974
125. Species Peridinium affine Balech, 1958 accepted as Protoperidinium affine (Balech, 1958) Balech, 1974 (synonym)
126. Species Peridinium africanoides P.-A.Dangeard, 1927 accepted as Protoperidinium latispinum (Mangin, 1926) Balech, 1974 (synonym)
127. Species Peridinium africanum Lemmermann, 1907 accepted as Parvodinium africanum (Lemmermann) Carty, 2008
128. Species Peridinium alatum Garbini, 1902 accepted as Peridinium willei Huitfeldt-Kaas, 1900 (synonym)
129. Species Peridinium aliferum Gaarder accepted as Protoperidinium aliferum (Gaarder) Balech, 1974 (synonym)
130. Species Peridinium alpinum Perty, 1849 accepted as Glenodinium alpinum (Perty) Perty
131. Species Peridinium ambiguum Er.Lindemann, 1931 accepted as Peridinium umbonatum F.Stein, 1883 accepted as Parvodinium umbonatum (F.Stein) Carty, 2008 (synonym)
132. Species Peridinium americanum Gran & Braarud, 1935 accepted as Protoperidinium americanum (Gran & Braarud, 1935) Balech, 1974 (synonym)
133. Species Peridinium amplum Matzenauer, 1933 accepted as Protoperidinium amplum (Matzenauer, 1933) Balech, 1974 (synonym)
134. Species Peridinium ampulla Balech, 1971 accepted as Protoperidinium ampulla (Balech, 1971) Balech, 1974 (synonym)
135. Species Peridinium anceps Meunier, 1910 accepted as Protoperidinium anceps (Meunier, 1910) Balech, 1974 (synonym)
136. Species Peridinium anglicum G.S.West, 1909 accepted as Palatinus apiculatus (Ehrenberg) Craveiro, Calado, Daugbjerg & Moestrup, 2009 (synonym)
137. Species Peridinium anguipes Balech, 1967 accepted as Protoperidinium anguipes (Balech, 1967) Balech, 1974 (synonym)
138. Species Peridinium angustum P.-A.Dangeard, 1927 accepted as Protoperidinium angustum (P.-A.Dangeard, 1927) Balech, 1974 (synonym)
139. Species Peridinium anomaloplaxum Balech, 1964 accepted as Protoperidinium anomaloplaxum (Balech, 1964) Balech, 1974 (synonym)
140. Species Peridinium antarcticum Schimper ex Karsten, 1905 accepted as Protoperidinium antarcticum (Schimper ex Karsten) Balech, 1974 (synonym)
141. Species Peridinium anthonyi Fauré-Fremiet, 1908 accepted as Protoperidinium anthonyi (Fauré-Fremiet, 1908) Balech, 1974 (synonym)
142. Species Peridinium apiculatum (G.S.West) Lindemann, 1928 accepted as Peridinium palatinum Lauterborn, 1896 accepted as Palatinus apiculatus (Ehrenberg) Craveiro, Calado, Daugbjerg & Moestrup, 2009 (synonym)
143. Species Peridinium apiculatum (Ehrenberg) Claparède & Lachmann, 1859 accepted as Palatinus apiculatus (Ehrenberg) Craveiro, Calado, Daugbjerg & Moestrup, 2009 (synonym)
144. Species Peridinium apiculatum Penard, 1891 accepted as Gonyaulax clevei Ostenfeld, 1902
145. Species Peridinium applanatum Manguin, 1926 accepted as Protoperidinium applanatum (Mangin) Balech, 1974 (synonym)
146. Species Peridinium archiovatum Balech, 1958 accepted as Protoperidinium archiovatum (Balech) Balech, 1974 (synonym)
147. Species Peridinium arcticum Ehrenberg accepted as Ceratium arcticum (Ehrenberg) L.Maggi, 1880 accepted as Tripos arcticus (Vanhöffen) F.Gómez, 2013 (synonym)
148. Species Peridinium areolatum Peters, 1928 accepted as Protoperidinium areolatum (Peters, 1928) Balech, 1974 (synonym)
149. Species Peridinium asperum G.H.Wailes, 1928 accepted as Protoperidinium asperum (G.H.Wailes, 1928) Balech, 1974 (synonym)
150. Species Peridinium aspidiotum Balech, 1964 accepted as Protoperidinium aspidiotum (Balech, 1964) Balech, 1974 (synonym)
151. Species Peridinium asymmetricum (Mangin) Ostenfeld, 1915 accepted as Dissodium asymmetricum (Mangin) Loeblich III, 1970 accepted as Diplopsalopsis bomba (Stein) J.D.Dodge & S.Toriumi, 1993 (synonym)
152. Species Peridinium australe (Playfair) Playfair, 1920 accepted as Peridinium willei Huitfeldt-Kaas, 1900 (synonym)
153. Species Peridinium avellana Lebour, 1925 accepted as Protoperidinium avellana (Meunier, 1919) Balech, 1974 (synonym)
154. Species Peridinium baicalense Kiselev & V. Zvetkov, 1935 accepted as Apocalathium baicalense (Kisselev & V.Zvetkov) Craveiro, Daugbjerg, Moestrup & Calado, 2016
155. Species Peridinium balechii R.Akselman accepted as Protoperidinium balechii (R.Akselman) Balech, 1988
156. Species Peridinium baliense Lindemann, 1931 accepted as Chimonodinium baliense (Er.Lindemann) Moestrup & Calado, 2018
157. Species Peridinium balticum (Levander) Lemmermann, 1900 accepted as Durinskia dybowskii (Woloszynska) Carty, 2014 (synonym)
158. Species Peridinium belizense Carty, 2003 accepted as Parvodinium belizense (Carty) Carty, 2008
159. Species Peridinium bellulum Balech, 1971 accepted as Protoperidinium bellulum (Balech, 1971) Balech, 1974 (synonym)
160. Species Peridinium berolinense Lemmermann, 1900 accepted as Tyrannodinium edax (A.J.Schilling) Calado, 2011 (synonym)
161. Species Peridinium biconicum P.A..Dangeard, 1927 accepted as Protoperidinium biconicum (P.A.Dangeard) Balech, 1974 (synonym)
162. Species Peridinium bimucronatum J.Schiller, 1935 accepted as Protoperidinium bimucronatum (J.Schiller) Balech, 1967
163. Species Peridinium bispinum J.Schiller, 1937 accepted as Protoperidinium bispinum (J.Schiller) Balech, 1974 accepted as Protoperidinium bimucronatum (J.Schiller) Balech, 1967 (synonym)
164. Species Peridinium blackmani Murray & Whitting, 1899 accepted as Heterodinium blackmanii (Murray & Whitting) Kofoid, 1906 (synonym)
165. Species Peridinium borgei (Lemmermann) Lemmermann, 1910 accepted as Peridiniopsis borgei Lemmermann, 1904 (synonym)
166. Species Peridinium braarudi Schiller, 1937 accepted as Protoperidinium braarudii (Schiller, 1937) Balech, 1974 (synonym)
167. Species Peridinium brachypus J.Schiller, 1935 accepted as Protoperidinium brachypus (J.Schiller) Balech, 1974 (synonym)
168. Species Peridinium breve (Paulsen) Paulsen, 1907 accepted as Protoperidinium pyriforme subsp. breve (Paulsen) Balech, 1988
169. Species Peridinium brevipes Paulsen, 1908 accepted as Protoperidinium brevipes (Paulsen, 1908) Balech, 1974 (Synonym)
170. Species Peridinium brintonii Balech, 1962 accepted as Protoperidinium pouchetii (Kofoid & Michener) F.J.R.Taylor & Balech ex Balech, 1988 (synonym)
171. Species Peridinium brochii Kofoid & Swezy, 1921 accepted as Protoperidinium brochii (Kofoid & Swezy, 1921) Balech, 1974 (synonym)
172. Species Peridinium bulbosum Gaarder, 1954 accepted as Protoperidinium bulbosum (Gaarder, 1954) Balech, 1974 (synonym)
173. Species Peridinium bulla Meunier, 1910 accepted as Protoperidinium bulla (Meunier, 1910) Balech, 1974 (synonym)
174. Species Peridinium californicum (Javornick) S.Rodriguez et al., 1999 accepted as Unruhdinium durandii (S.Rodriguez, Couté, Ten-Hage & Mascarell) Moestrup & Calado, 2018 (synonym)
175. Species Peridinium candelabrum Ehrenberg, 1860 accepted as Tripos candelabrum (Ehrenberg) F.Gómez, 2013 (synonym)
176. Species Peridinium capdevillei Balech, 1959 accepted as Protoperidinium capdevillei (Balech, 1959) Balech, 1974 (synonym)
177. Species Peridinium capurroi Balech, 1959 accepted as Protoperidinium capurroi (Balech, 1959) Balech, 1974 (synonym)
178. Species Peridinium carinaeferum Gail, 1950 accepted as Protoperidinium carinaeferum (Gail, 1950) Balech, 1994
179. Species Peridinium carolinianum Bailey, 1851 accepted as Ceratium carolinianum (Bailey) Jörgensen, 1911 (synonym)
180. Species Peridinium castaneiforme L.A.Mangin, 1922 accepted as Protoperidinium castaneiforme (Mangin, 1926) Balech, 1974
181. Species Peridinium catenatum Levander, 1894 accepted as Peridiniella catenata (Levander) Balech, 1977
182. Species Peridinium caudatum (Playfiar) Playfair, 1919 accepted as Parvodinium inconspicuum (Lemmermann) Carty, 2008 (synonym)
183. Species Peridinium cavispinum L.A.Mangin, 1922 accepted as Protoperidinium cavispinum (Mangin, 1926) Balech, 1974
184. Species Peridinium centenniale (Playfair) M.Lefèvre, 1932 accepted as Parvodinium centenniale (Playfair) Carty, 2008
185. Species Peridinium cepa Balech, 1971 accepted as Protoperidinium cepa (Balech, 1971) Balech, 1974 (synonym)
186. Species Peridinium cerasus Paulsen, 1907 accepted as Protoperidinium cerasus (Paulsen, 1907) Balech, 1973 (basionym)
187. Species Peridinium chalubinskii Woloszynska, 1919 accepted as Peridinium raciborskii var. palustre (Er.Lindemann) Er.Lindemann, 1928 (synonym)
188. Species Peridinium charcotii Balech, 1958 accepted as Protoperidinium charcotii (Balech, 1958) Balech, 1974 (unaccepted > superseded combination)
189. Species Peridinium charkowiensis Matvienko, 1938 accepted as Peridiniopsis charkowiensis (Matvienko) Bourrelly, 1968 (synonym)
190. Species Peridinium claudicans Paulsen, 1907 accepted as Protoperidinium claudicans (Paulsen, 1907) Balech, 1974 (basionym)
191. Species Peridinium clavus T.H.Abe, 1936 accepted as Protoperidinium denticulatum (Gran & Braarud, 1935) Balech, 1974 (synonym)
192. Species Peridinium colombonense Matzenauer, 1933 accepted as Protoperidinium colombonense (Matzenauer, 1933) Balech, 1974 (synonym)
193. Species Peridinium compressum (Abé) Nie accepted as Protoperidinium compressum (Abé) Balech, 1974 (synonym)
194. Species Peridinium concavum Mangin, 1926 accepted as Protoperidinium concavum (Mangin) Balech, 1974 (synonym)
195. Species Peridinium conicoides Paulsen, 1905 accepted as Protoperidinium conicoides (Paulsen) Balech, 1973 (synonym)
196. Species Peridinium conicum (Gran) Ostenfeld & Schmidt, 1902 accepted as Protoperidinium conicum (Gran) Balech, 1974 (Synonym)
197. Species Peridinium constrictum T.H.Abé, 1936 accepted as Archaeperidinium constrictum (T.H.Abé) T.Liu, K.N.Mertens, K.Matsuoka & H.Gu, 2015
198. Species Peridinium cornutum Ehrenberg, 1832 accepted as Ceratium cornutum (Ehrenberg) Claparède & J.Lachmann, 1859 (synonym)
199. Species Peridinium corpusculum Perty, 1852 accepted as Gymnodinium corpusculum (Perty) W.S.Kent, 1881
200. Species Peridinium crassipes Kofoid, 1907 accepted as Protoperidinium crassipes (Kofoid, 1907) Balech, 1974 (basionym)
201. Species Peridinium crassipyrum Balech, 1961 accepted as Protoperidinium crassipyrum (Balech, 1961) Balech, 1974
202. Species Peridinium crassum P.-A.Dangeard, 1927 accepted as Protoperidinium inflatum (Okamura, 1912) Balech, 1974
203. Species Peridinium crassum Balech, 1959 accepted as Protoperidinium crassum Balech, 1971
204. Species Peridinium cruciferum Balech, 1971 accepted as Protoperidinium cruciferum (Balech, 1971) Balech, 1973 (synonym)
205. Species Peridinium cunningtonii (Lemmermann) Lemmermann, 1910 accepted as Peridiniopsis cunningtonii Lemmermann, 1907 accepted as Parvodinium cunningtonii (Lemmermann) Pandeirada, Craveiro, Daugbjerg, Moestrup & A.J.Calado, 2022 (synonym)
206. Species Peridinium curtipes Jørgensen, 1912 accepted as Protoperidinium curtipes (Jørgensen, 1912) Balech, 1974 (synonym)
207. Species Peridinium curtum Balech, 1958 accepted as Protoperidinium curtum (Balech, 1958) Balech, 1973 (synonym)
208. Species Peridinium curvipes Ostenfeld, 1906 accepted as Protoperidinium curvipes (Ostenfeld) Balech, 1974 (synonym)
209. Species Peridinium dakariensis P.A.Dangeard, 1927 accepted as Protoperidinium dakariense (P.-A.Dangeard, 1927) Balech, 1974
210. Species Peridinium decens Balech, 1971 accepted as Protoperidinium decens (Balech, 1971) Balech, 1974
211. Species Peridinium decipiens Jörgensen, 1899 accepted as Protoperidinium decipiens (Jörgensen) Parke & J.D.Dodge, 1976 (synonym)
212. Species Peridinium decollatum Balech, 1971 accepted as Protoperidinium decollatum (Balech, 1971) Balech, 1974 (synonym)
213. Species Peridinium defectum Balech, 1965 (unaccepted, synonym)
214. Species Peridinium deficiens Meunier, 1919 (unaccepted)
215. Species Peridinium deflandrei M.Lefèvre, 1927 (unaccepted, synonym)
216. Species Peridinium delicatissimum T.Braarud, 1935 (unaccepted)
217. Species Peridinium denticulatum Gran & Braarud, 1935 (unaccepted, synonym)
218. Species Peridinium depressum (Bailey) Peters, 1928 (unaccepted, synonym)
219. Species Peridinium depressum Bailey, 1854 (unaccepted, Synonym)
220. Species Peridinium diabolus Cleve, 1900 (unaccepted, basionym)
221. Species Peridinium discoides G.H.Wailes, 1928 (unaccepted, synonym)
222. Species Peridinium distans Mangin (unaccepted)
223. Species Peridinium divaricatum Meunier (unaccepted, synonym)
224. Species Peridinium divergens Ehrenberg, 1840 (unaccepted)
225. Species Peridinium doma Murray & Whitting, 1899 (unaccepted)
226. Species Peridinium dybowskii Woloszynska, 1916 (unaccepted, synonym)
227. Species Peridinium dzieduszyckii Woloszynska, 1916 (unaccepted, synonym)
228. Species Peridinium elegans Cleve, 1900 (unaccepted, synonym)
229. Species Peridinium elegans M.Lefèvre, 1925 (unaccepted)
230. Species Peridinium elegantissimum Balech, 1958 (unaccepted, synonym)
231. Species Peridinium ellipsoides P.A.Dangeard (unaccepted, synonym)
232. Species Peridinium elongatum Meunier, 1910 (unaccepted, synonym)
233. Species Peridinium elpatiewskyi (Ostenfeld) Lemmermann, 1910 (unaccepted, synonym)
234. Species Peridinium eugrammum Ehrenberg, 1860 (unaccepted, synonym)
235. Species Peridinium euryceps Rengefors & Barbara Meyer, 1998 (unaccepted)
236. Species Peridinium excentricum Paulsen, 1907 (unaccepted, Synonym)
237. Species Peridinium exiguum Cleve, 1900 (unaccepted)
238. Species Peridinium eximium Lindemann, 1920 (unaccepted, synonym)
239. Species Peridinium expansum Abé, 1981 (unaccepted, synonym)
240. Species Peridinium faeroense O.W.Paulsen, 1905 (unaccepted, synonym)
241. Species Peridinium fatulipes Kofoid, 1907 (unaccepted, synonym)
242. Species Peridinium fimbriatum Meunier, 1919 (unaccepted, synonym)
243. Species Peridinium finlandicum Paulsen, 1907 (unaccepted)
244. Species Peridinium foliaceum Biecheler, 1952 (unaccepted > junior subjective synonym)
245. Species Peridinium furca Ehrenberg, 1834 (unaccepted, synonym)
246. Species Peridinium fuscum Ehrenberg, 1834 (unaccepted, synonym)
247. Species Peridinium fusus Ehrenberg, 1834 (unaccepted, synonym)
248. Species Peridinium gainii P.-A.Dangeard, 1920 (unaccepted, synonym)
249. Species Peridinium geminum Playfair, 1920 (unaccepted)
250. Species Peridinium germanicum Er.Lindemann, 1919 (unaccepted, synonym)
251. Species Peridinium gibbosum Matzenauer, 1933 (unaccepted, synonym)
252. Species Peridinium globifera Abé, 1981 (unaccepted)
253. Species Peridinium globosum P.A.Dangeard, 1927 (unaccepted, synonym)
254. Species Peridinium globulus Stein, 1883 (unaccepted, synonym)
255. Species Peridinium godlewskii Woloszynska, 1916 (unaccepted)
256. Species Peridinium goslaviense Wolszynska, 1916 (unaccepted)
257. Species Peridinium gracile Lindemann, 1924 (unaccepted, synonym)
258. Species Peridinium grahamii Sournia, 1973 (unaccepted, synonym)
259. Species Peridinium grande Kofoid, 1907 (unaccepted, synonym)
260. Species Peridinium granii Ostenfeld, 1907 (unaccepted, synonym)
261. Species Peridinium granulosum (Playfair) Playfair, 1920 (unaccepted)
262. Species Peridinium gregarium E.H.Lombard & B.Capon, 1971 (unaccepted, basionym)
263. Species Peridinium grenlandicum Woloszynska, 1929 (unaccepted)
264. Species Peridinium groenlandicum Woloszynska, 1929 (unaccepted)
265. Species Peridinium guestrowiense Er.Lindemann, 1916 (unaccepted, synonym)
266. Species Peridinium hangoei J.Schiller, 1935 (unaccepted, synonym)
267. Species Peridinium helix Balech, 1962 (unaccepted)
268. Species Peridinium hemisphaericum T.H.Abé, 1936 (unaccepted)
269. Species Peridinium heteracanthum P.A.Dangeard, 1927 (unaccepted)
270. Species Peridinium heteroconicum Matzenauer, 1933 (unaccepted, synonym)
271. Species Peridinium heterospinum Gaarder, 1954 (unaccepted, synonym)
272. Species Peridinium hiemale J.Schiller, 1955 (unaccepted, synonym)
273. Species Peridinium hieroglyphicum (Playfair) Playfair, 1920 (unaccepted, synonym)
274. Species Peridinium hirobis Abé, 1927 (unaccepted)
275. Species Peridinium huberi J.Schiller, 1929 (unaccepted)
276. Species Peridinium humile Schiller, 1937 (unaccepted, synonym)
277. Species Peridinium hyalinum Meunier, 1910 (unaccepted)
278. Species Peridinium incertum Balech, 1958 (unaccepted, synonym)
279. Species Peridinium inclinatum Balech, 1964 (unaccepted)
280. Species Peridinium incognitum Balech, 1959 (unaccepted, synonym)
281. Species Peridinium inconspicuum Lemmermann, 1899 (unaccepted, synonym)
282. Species Peridinium incurvum Lindemann, 1924 (unaccepted, synonym)
283. Species Peridinium inerme Schmarda (unaccepted, synonym)
284. Species Peridinium inflatiforme A.Böhm, 1936 (unaccepted)
285. Species Peridinium inflatum Okamura, 1912 (unaccepted, synonym)
286. Species Peridinium intermedium R.H.Thompson, 1951 (unaccepted)
287. Species Peridinium intermedium (Playfair) Playfair, 1920 (unaccepted)
288. Species Peridinium islandicum Paulsen, 1904 (unaccepted, synonym)
289. Species Peridinium javanicum C.Bernard, 1908 (unaccepted, synonym)
290. Species Peridinium jensenii (Nygaard) Nygaard, 1932 (unaccepted)
291. Species Peridinium joergenseni Balech, 1971 (unaccepted, synonym)
292. Species Peridinium joubini P.-A.Dangeard, 1927 (unaccepted, synonym)
293. Species Peridinium keyense Nygaard, 1926 (unaccepted)
294. Species Peridinium kincaidii Wailes, 1933 (unaccepted, synonym)
295. Species Peridinium knipowitschii Usachev [Ussatschew], 1927 (unaccepted)
296. Species Peridinium kulczynskii Woloszynska, 1916 (unaccepted, synonym)
297. Species Peridinium laeve Huitfeld-Kaas, 1901 (unaccepted, synonym)
298. Species Peridinium laticeps J.Gröntved & G.Seidenfaden, 1938 (unaccepted)
299. Species Peridinium latidorsale (P.A.Dangeard) Balech, 1951 (unaccepted)
300. Species Peridinium latipyrum Balech, 1959 (unaccepted)
301. Species Peridinium latispinum Mangin, 1926 (unaccepted, synonym)
302. Species Peridinium latissimum Kofoid, 1907 (unaccepted, synonym)
303. Species Peridinium latistriatum Balech, 1958 (unaccepted, synonym)
304. Species Peridinium latum Paulsen, 1908 (unaccepted)
305. Species Peridinium lenticula Paulsen, 1914 (unaccepted, synonym)
306. Species Peridinium lenticulatum L.A.Mangin, 1911 (unaccepted)
307. Species Peridinium lenticulum Mangin, 1911 (unaccepted, synonym)
308. Species Peridinium leonis Pavillard, 1916 (unaccepted, Synonym)
309. Species Peridinium levanderi Lemmermann, 1900 (unaccepted)
310. Species Peridinium limnophilum Lindemann, 1924 (unaccepted, synonym)
311. Species Peridinium lindemannii M.Lefèvre, 1927 (unaccepted, synonym)
312. Species Peridinium lineatum Ehrenberg, 1854 (unaccepted, synonym)
313. Species Peridinium linzium Er.Lindemann, 1920 (unaccepted, synonym)
314. Species Peridinium lipopodium Balech, 1964 (unaccepted, synonym)
315. Species Peridinium lomnickii Wołoszyńska, 1916 (unaccepted)
316. Species Peridinium longipes Bailey, 1854 (unaccepted, synonym)
317. Species Peridinium longispinum Kofoid, 1907 (unaccepted, synonym)
318. Species Peridinium lubieniense Wolszynska, 1916 (unaccepted, synonym)
319. Species Peridinium lubiniensiforme (Diwald) Huber-pestalozzi, 1950 (unaccepted, synonym)
320. Species Peridinium macroceros Ehrenberg, 1841 (unaccepted, synonym)
321. Species Peridinium maeandricum V.Brehm, 1908 (unaccepted, synonym)
322. Species Peridinium magnum Schiller, 1929 (unaccepted, synonym)
323. Species Peridinium malmogiense G.Sjöstedt, 1921 (unaccepted)
324. Species Peridinium mangini Balech, 1971 (unaccepted, synonym)
325. Species Peridinium marchicum Lemmermann, 1910 (unaccepted, synonym)
326. Species Peridinium margalefii E.S.Silva (unaccepted)
327. Species Peridinium marie-lebouriae Paulsen, 1931 (unaccepted, synonym)
328. Species Peridinium marinum Lindemann, 1925 (unaccepted)
329. Species Peridinium marssonii Lemmermann, 1900 (unaccepted, synonym)
330. Species Peridinium marukawae T.H.Abé, 1936 (unaccepted, synonym)
331. Species Peridinium mastophorum Balech, 1971 (unaccepted, synonym)
332. Species Peridinium matzenaueri Böhm, 1936 (unaccepted, synonym)
333. Species Peridinium mediocre Balech, 1958 (unaccepted, synonym)
334. Species Peridinium mediterraneum (Kofoid, 1909) Balech, 1964 (unaccepted)
335. Species Peridinium melo Balech, 1971 (unaccepted, synonym)
336. Species Peridinium metananum Balech, 1965 (unaccepted, synonym)
337. Species Peridinium meunieri Pavillard, 1912 (unaccepted, synonym)
338. Species Peridinium michaelis Ehrenberg, 1833 (unaccepted, synonym)
339. Species Peridinium milneri Murray & Whitting, 1899 (unaccepted, synonym)
340. Species Peridinium minimum A.J.Schilling, 1891 (unaccepted, synonym)
341. Species Peridinium minisculum Pavillard, 1905 (unaccepted, Synonym)
342. Species Peridinium minnesotense Eisenack, 1965 (unaccepted)
343. Species Peridinium minus Mangin, 1922 (unaccepted)
344. Species Peridinium minutissimum L.A.Mangin, 1922 (unaccepted)
345. Species Peridinium minutum Kofoid, 1907 (unaccepted, synonym)
346. Species Peridinium mite Pavillard, 1916 (unaccepted, synonym)
347. Species Peridinium monadicum Perty, 1852 (unaccepted, synonym)
348. Species Peridinium monospinum Paulsen, 1907 (unaccepted, synonym)
349. Species Peridinium monovelum Abé, 1936 (unaccepted, synonym)
350. Species Peridinium morzinense M.Lefèvre, 1928 (unaccepted)
351. Species Peridinium multipunctatum Fauré-Fremiet, 1908 (unaccepted)
352. Species Peridinium multistriatum C.A.Kofoid (unaccepted)
353. Species Peridinium munobis Abé, 1927 (unaccepted, synonym)
354. Species Peridinium munusculum Er.Lindemann, 1919 (unaccepted, synonym)
355. Species Peridinium murrayi Kofoid, 1907 (unaccepted, synonym)
356. Species Peridinium mutsuense T.H.Abé, 1936 (unaccepted, synonym)
357. Species Peridinium mutsui J.Schiller, 1935 (unaccepted)
358. Species Peridinium nanum Balech, 1962 (unaccepted)
359. Species Peridinium nipponicum T.H.Abé, 1927 (unaccepted, synonym)
360. Species Peridinium norpacense Balech (unaccepted)
361. Species Peridinium novascotiense H.H.Gran & T.Braarud, 1935 (unaccepted, synonym)
362. Species Peridinium nudum Meunier, 1919 (unaccepted, synonym)
363. Species Peridinium nux J.Schiller, 1937 (unaccepted)
364. Species Peridinium oblongum (Aurivillius) Cleve, 1900 (unaccepted, synonym)
365. Species Peridinium obovatum E.J.F.Wood, 1954 (unaccepted, synonym)
366. Species Peridinium obtusipes L.A.Mangin, 1930 (unaccepted)
367. Species Peridinium obtusum (Karsten) M.Lebour, 1925 (unaccepted, synonym)
368. Species Peridinium oceanicum Vanhöffen, 1897 (unaccepted, synonym)
369. Species Peridinium oculatum (F.Stein) Woloszynska, 1917 (unaccepted)
370. Species Peridinium okamurae T.H.Abé, 1927 (unaccepted)
371. Species Peridinium orbiculare Paulsen, 1907 (unaccepted, synonym)
372. Species Peridinium orientale Matzenauer, 1933 (unaccepted, synonym)
373. Species Peridinium ornamentosum Er.Lindemann, 1931 (unaccepted, synonym)
374. Species Peridinium orrei Huitfeldt-Kaas, 1906 (unaccepted, synonym)
375. Species Peridinium ovatoides Meunier, 1910 (unaccepted, synonym)
376. Species Peridinium ovatum (Pouchet) F.Schütt, 1895 (unaccepted, Synonym)
377. Species Peridinium oviforme P.-A.Dangeard, 1927 (unaccepted, synonym)
378. Species Peridinium ovum Schiller, 1911 (unaccepted)
379. Species Peridinium ovum Matvienko, 1938 (unaccepted, synonym)
380. Species Peridinium palatinum Lauterborn, 1896 (unaccepted, synonym)
381. Species Peridinium pallidum Ostenfeld, 1900 (unaccepted, synonym)
382. Species Peridinium palustre (Er.Lindemann) M.Lefèvre, 1932 (unaccepted, synonym)
383. Species Peridinium paradoxum F.J.R.Taylor, 1976 (unaccepted)
384. Species Peridinium parapyriforme Hermosilla, 1968 (unaccepted)
385. Species Peridinium parcum Balech, 1971 (unaccepted, synonym)
386. Species Peridinium parvicollum Balech, 1958 (unaccepted, synonym)
387. Species Peridinium parvispinum Gaarder, 1954 (unaccepted, synonym)
388. Species Peridinium parvulum Woloszynska, 1935 (unaccepted, synonym)
389. Species Peridinium patagonicum Balech, 1959 (unaccepted, synonym)
390. Species Peridinium patens P.-A.Dangeard, 1927 (unaccepted)
391. Species Peridinium paulsenii Mangin, 1911 (unaccepted, synonym)
392. Species Peridinium paulsenii Pavillard, 1909 (unaccepted)
393. Species Peridinium pedunculatum F.Schütt, 1895 (unaccepted, basionym)
394. Species Peridinium pellucidum (Bergh) Schütt, 1895 (unaccepted, synonym)
395. Species Peridinium penardiforme Er.Lindemann, 1918 (unaccepted, synonym)
396. Species Peridinium penardii (Lemmermann) Lemmermann, 1910 (unaccepted, synonym)
397. Species Peridinium penitum Balech, 1971 (unaccepted, synonym)
398. Species Peridinium pentagonum Gran, 1902 (unaccepted, synonym)
399. Species Peridinium pernardiforme Lindemann, 1918 (unaccepted)
400. Species Peridinium perplexum Balech, 1971 (unaccepted, synonym)
401. Species Peridinium peruvianum Balech, 1961 (unaccepted, synonym)
402. Species Peridinium petersii Balech, 1958 (unaccepted, synonym)
403. Species Peridinium pietschmanni A.Böhm, 1931 (unaccepted)
404. Species Peridinium pilula (Ostenfeld) Lemmermann, 1910 (unaccepted)
405. Species Peridinium polonicum Woloszynska, 1916 (unaccepted)
406. Species Peridinium polyedricum Pouchet, 1883 (unaccepted, synonym)
407. Species Peridinium pseudoantarcticum Balech, 1958 (unaccepted)
408. Species Peridinium pseudointermedium Couté & Iltis, 1984 (unaccepted, synonym)
409. Species Peridinium pseudolaeve Lefèvre, 1926 (unaccepted, basionym)
410. Species Peridinium pulvisculus Ehrenberg (unaccepted)
411. Species Peridinium punctulatum Paulsen, 1907 (unaccepted, synonym)
412. Species Peridinium pusillum (Pénard) Lemmermann, 1901 (unaccepted, synonym)
413. Species Peridinium pygmaeum Er.Lindemann, 1920 (unaccepted, synonym)
414. Species Peridinium pyriforme Paulsen, 1907 (unaccepted, synonym)
415. Species Peridinium pyrum Balech, 1959 (unaccepted, synonym)
416. Species Peridinium quadratum Matzenauer, 1933 (unaccepted, synonym)
417. Species Peridinium quadridens F.Stein, 1883 (unaccepted)
418. Species Peridinium quarnerense B.Schröder, 1900 (unaccepted, synonym)
419. Species Peridinium quinquecorne T.H.Abé, 1927 (unaccepted)
420. Species Peridinium rampii Balech, 1959 (unaccepted)
421. Species Peridinium raphanum Balech, 1958 (unaccepted, synonym)
422. Species Peridinium rectiforme J.Schiller, 1929 (unaccepted)
423. Species Peridinium rectum Kofoid, 1907 (unaccepted, synonym)
424. Species Peridinium remotum Karsten, 1907 (unaccepted, synonym)
425. Species Peridinium reticulatum Claparède & Lachmann, 1859 (unaccepted, synonym)
426. Species Peridinium retiferum Matzenauer, 1933 (unaccepted, synonym)
427. Species Peridinium rhenanum Er.Lindemann, 1919 (unaccepted, synonym)
428. Species Peridinium rosaceum Balech, 1958 (unaccepted, synonym)
429. Species Peridinium roscoffiense Balech, 1962 (unaccepted, synonym)
430. Species Peridinium roseum O.W.Paulsen, 1904 (unaccepted, synonym)
431. Species Peridinium rotundatum T.H.Abé, 1936 (unaccepted)
432. Species Peridinium saltans Meunier, 1910 (unaccepted, synonym)
433. Species Peridinium saltans Pavillard, 1915 (unaccepted, synonym)
434. Species Peridinium scallense Er.Lindemann, 1920 (unaccepted)
435. Species Peridinium schilleri Paulsen, 1931 (unaccepted, synonym)
436. Species Peridinium semicirculatum Er.Lindemann, 1920 (unaccepted)
437. Species Peridinium seta Ehrenberg, 1860 (unaccepted, synonym)
438. Species Peridinium simulum Paulsen, 1931 (unaccepted, synonym)
439. Species Peridinium sinaicum Matzenauer, 1933 (unaccepted, synonym)
440. Species Peridinium sinuosum Lemmermann, 1905 (unaccepted, synonym)
441. Species Peridinium solidicorne Mangin, 1926 (unaccepted, synonym)
442. Species Peridinium solitarium T.H.Abé, 1936 (unaccepted, synonym)
443. Species Peridinium somma Matzenauer, 1933 (unaccepted, synonym)
444. Species Peridinium sourniae F.J.R.Taylor, 1976 (unaccepted)
445. Species Peridinium sphaericum G.Murray & Whitting, 1899 (unaccepted)
446. Species Peridinium sphaeroideum Mangin, 1926 (unaccepted)
447. Species Peridinium sphaeroideum H.R.Christen, 1958 (unaccepted, synonym)
448. Species Peridinium spiniferum Claparède & Lachmann, 1859 (unaccepted)
449. Species Peridinium spiniferum J.Schiller, 1937 (unaccepted)
450. Species Peridinium spinulosum Murray & Whitting, 1899 (unaccepted, synonym)
451. Species Peridinium splendor-maris Ehrenberg, 1860 (unaccepted, synonym)
452. Species Peridinium stagnale Meunier, 1919 (unaccepted, synonym)
453. Species Peridinium steini Jörgensen, 1899 (unaccepted, synonym)
454. Species Peridinium steinii Jørgensen, 1889 (unaccepted, synonym)
455. Species Peridinium steinmanni Woloszynska, 1930 (unaccepted, synonym)
456. Species Peridinium stellatum D.Wall, 1968 (unaccepted)
457. Species Peridinium striolatum G.H.Wailes, 1928 (unaccepted, synonym)
458. Species Peridinium styliferum J.Schiller, 1929 (unaccepted)
459. Species Peridinium subcurvipes Lebour, 1923 (unaccepted, synonym)
460. Species Peridinium subinerme Paulsen, 1908 (unaccepted, synonym)
461. Species Peridinium subinermis Paulsen, 1904 (unaccepted, synonym)
462. Species Peridinium subpunctulatum G.H.Wailes, 1928 (unaccepted, synonym)
463. Species Peridinium subpyriforme P.-A.Dangeard, 1927 (unaccepted, synonym)
464. Species Peridinium subsalsum Ostenfeld, 1908 (unaccepted, synonym)
465. Species Peridinium suttonii B.M.Griffiths, 1922 (unaccepted, synonym)
466. Species Peridinium sylvanae P.-A.Dangeard, 1927 (unaccepted)
467. Species Peridinium symmertricum Halim, 1967 (unaccepted, synonym)
468. Species Peridinium sympholis Hermosilla & Balech, 1969 (unaccepted, synonym)
469. Species Peridinium tabulatum Ehrenberg, 1832 (unaccepted)
470. Species Peridinium taeningi Rampi, 1950 (unaccepted, synonym)
471. Species Peridinium tatrae Schiller, 1937 (unaccepted, synonym)
472. Species Peridinium tatricum Woloszynska, 1916 (unaccepted, synonym)
473. Species Peridinium tenuissimum C.A.Kofoid, 1907 (unaccepted)
474. Species Peridinium thorianum Paulsen, 1905 (unaccepted, synonym)
475. Species Peridinium thulesense Balech, 1958 (unaccepted, synonym)
476. Species Peridinium tregouboffi Halim, 1955 (unaccepted, synonym)
477. Species Peridinium treubii Woloszynska, 1912 (unaccepted, synonym)
478. Species Peridinium trichoceros Ehrenberg, 1860 (unaccepted, synonym)
479. Species Peridinium trilineatum Lindemann, 1919 (unaccepted, synonym)
480. Species Peridinium tripos (O.F.Müller) Ehrenberg, 1834 (unaccepted, synonym)
481. Species Peridinium tripos G.Murray & F.G.Whitting, 1899 (unaccepted, synonym)
482. Species Peridinium triquetra (Ehrenberg) Lebour, 1925 (unaccepted, synonym)
483. Species Peridinium triquetrum Schiller, 1937 (unaccepted, synonym)
484. Species Peridinium tristylum F.Stein, 1883 (unaccepted)
485. Species Peridinium trochoideum (F.Stein) Lemmermann, 1910 (unaccepted, synonym)
486. Species Peridinium truncatum H.W.Graham, 1942 (unaccepted, synonym)
487. Species Peridinium truncum T.H.Abé, 1936 (unaccepted)
488. Species Peridinium tuba Schiller, 1935 (unaccepted, basionym)
489. Species Peridinium tuberosum Meunier, 1919 (unaccepted, synonym)
490. Species Peridinium tumidum Okamura (unaccepted)
491. Species Peridinium turbinatum Mangin, 1926 (unaccepted, synonym)
492. Species Peridinium turgidum Meunier, 1910 (unaccepted, synonym)
493. Species Peridinium tyrrhenicum Balech, 1990 (unaccepted, synonym)
494. Species Peridinium uberrima G.J.Allman, 1855 (unaccepted, synonym)
495. Species Peridinium uliginosum (A.J.Schilling) Woloszynska, 1917 (unaccepted)
496. Species Peridinium umbonatum F.Stein, 1883 (unaccepted)
497. Species Peridinium unipes Balech, 1962 (unaccepted, synonym)
498. Species Peridinium vancouverense Wailes, 1931 (unaccepted, synonym)
499. Species Peridinium varicans Paulsen, 1911 (unaccepted, synonym)
500. Species Peridinium variegatum N.Peters (unaccepted, synonym)
501. Species Peridinium ventralis Abé, 1936 (unaccepted, synonym)
502. Species Peridinium ventricum Abé, 1927 (unaccepted)
503. Species Peridinium venustum Matzenauer, 1933 (unaccepted, synonym)
504. Species Peridinium verrucosum Meunier, 1910 (unaccepted, synonym)
505. Species Peridinium viguieri M.Lefèvre, 1932 (unaccepted, synonym)
506. Species Peridinium volsella Margalef, 1965 (unaccepted, synonym)
507. Species Peridinium volzii Wołoszyńska, 1995 (unaccepted > unavailable name, lapsus)
508. Species Peridinium westii Lemmermann, 1905 (unaccepted, synonym)
509. Species Peridinium wierzejskii Wołoszyńska, 1915 (unaccepted)
510. Species Peridinium wiesneri J.Schiller, 1911 (unaccepted, synonym)
511. Species Peridinium wildemanii Wołoszyńska, 1923 (unaccepted, synonym)
512. Species Peridinium wisconsinense Eddy, 1930 (unaccepted)
513. Species Peridinium yserense Meunier, 1919 (unaccepted, synonym)
514. Species Peridinium acutangulum (Lemmermann) Lemmermann (uncertain)
515. Species Peridinium aequalis W.S.Kent (uncertain)
516. Species Peridinium andrzejowskii Woloszynska, 1921 (uncertain)
517. Species Peridinium annulatum C.A.Kofoid & J.R.Michener, 1911 (uncertain)
518. Species Peridinium belgicum A.Wulff (uncertain)
519. Species Peridinium bicorne L.K.Schmarda (uncertain)
520. Species Peridinium callosum E.H.Jörgensen (uncertain)
521. Species Peridinium carinatum Ehrenberg (uncertain)
522. Species Peridinium cucumis Wailes, 1928 (uncertain)
523. Species Peridinium cuneatum A.C.J.Goor (uncertain)
524. Species Peridinium cypripedium H.J.Clark, 1865 (uncertain)
525. Species Peridinium delitiense Ehrenberg (uncertain)
526. Species Peridinium digitale (C.-H.-G.Pouchet) Lemmermann (uncertain)
527. Species Peridinium ellipsoideum P.A.Dangeard, 1927 (uncertain)
528. Species Peridinium ellipticum Karsten, 1907 (uncertain, uncertain taxonomic status subjected to verification)
529. Species Peridinium galeatum V.Hensen (uncertain)
530. Species Peridinium gravidum A.F.Meunier (uncertain)
531. Species Peridinium herbaceum F.Schütt (uncertain)
532. Species Peridinium imperfectum G.A.Klebs (uncertain)
533. Species Peridinium inconspicuum-contactum (E.Lindemann) F.Ruttner (uncertain)
534. Species Peridinium lenticulatum Fauré-Fremiet, 1908 (uncertain)
535. Species Peridinium loeblichii (E.R.Cox & H.J.Arnott) Dale, 1977 (uncertain)
536. Species Peridinium longirostrum A.Cleve (uncertain)
537. Species Peridinium melaphyri (Jenzsch) Ehrenberg (uncertain)
538. Species Peridinium mixtum Woloszynska, 1952 (uncertain)
539. Species Peridinium monoceros V.Hensen (uncertain)
540. Species Peridinium nodulosum C.A.Kofoid & J.R.Michener, 1911 (uncertain)
541. Species Peridinium ovale V.Hensen (uncertain)
542. Species Peridinium peisonis J.Schiller (uncertain)
543. Species Peridinium perbreve Balech & S.O.Soares (uncertain)
544. Species Peridinium porosum V.Hensen (uncertain)
545. Species Peridinium pseudo-laeve M.Lefèvre (uncertain)
546. Species Peridinium pseudonoctiluca (C.-H.-G.Pouchet) C.-H.-G.Pouchet (uncertain)
547. Species Peridinium pseudopallidum N.Peters (uncertain)
548. Species Peridinium rhombus A.F.Meunier (uncertain)
549. Species Peridinium rubrum L.S.Cienkowski (uncertain)
550. Species Peridinium seebergi A.Henckel (uncertain)
551. Species Peridinium spinosum J.Schiller, 1911 (uncertain)
552. Species Peridinium thuringiae (Jenzsch) Ehrenberg (uncertain)
553. Species Peridinium uberrimum G.J.Allman, 1854 (uncertain)
554. Species Peridinium umbonatum Karsten, 1907 (uncertain, preliminary, not subjected to verification)
555. Species Peridinium ventriosum O.C.A.Wetzel (uncertain)
556. Species Peridinium yonedae Abé, 1981 (uncertain, uncertain taxonomic status subjected to verification)

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