1. Species Echinus anchistus H.L. Clark, 1912
2. Species Echinus esculentus Linnaeus, 1758
3. Species Echinus gilchristi Bell, 1904
4. Species Echinus melo Lamarck, 1816
5. Species Echinus tenuispinus Norman, 1868
6. Species Echinus wallisi A. Agassiz, 1880
7. Subgenus Echinus (Agarites) L. Agassiz, 1841 accepted as Arbacia Gray, 1835 (subjective junior synonym)
   1. Species Echinus (Agarites) spatuligera Valenciennes, 1846 accepted as Arbacia spatuligera (Valenciennes, 1846) (transferred to Arbacia)
8. Subgenus Echinus (Colobocentrotus) Brandt, 1835 accepted as Colobocentrotus Brandt, 1835 (accepted at genus rank)
   1. Species Echinus (Colobocentrotus) leskii Brandt, 1835 accepted as Colobocentrotus (Colobocentrotus) mertensii (Brandt, 1835) (subjective junior synonym)
   2. Species Echinus (Colobocentrotus) mertensii Brandt, 1835 accepted as Colobocentrotus (Colobocentrotus) mertensii (Brandt, 1835) (Colobocentrotus accepted at genus rank)
9. Subgenus Echinus (Heterocentrotus) Brandt, 1835 accepted as Heterocentrotus Brandt, 1835 (accepted at genus rank)
   1. Species Echinus (Heterocentrotus) carinatus (Blainville, 1825) accepted as Heterocentrotus mamillatus (Linnaeus, 1758) (subjective junior synonym)
   2. Species Echinus (Heterocentrotus) postelsii Brandt, 1835 accepted as Heterocentrotus mamillatus (Linnaeus, 1758) (subjective junior synonym)
   3. Species Echinus (Heterocentrotus) taenitanus Brandt, 1835 accepted as Heterocentrotus trigonarius (Lamarck, 1816) (subjective junior synonym)
10. Subgenus Echinus (Psammechinus) L. Agassiz & Desor, 1846 accepted as Psammechinus L. Agassiz & Desor, 1846 (accepted at genus rank)
    1. Species Echinus (Psammechinus) chloroticus Valenciennes, 1846 accepted as Evechinus chloroticus (Valenciennes, 1846) (transferred to Evechinus)
    2. Species Echinus (Psammechinus) korenii Desor in L. Agassiz & Desor, 1846 accepted as Psammechinus miliaris (P.L.S. Müller, 1771) (subjective junior synonym)
    3. Species Echinus (Psammechinus) microtuberculatus Blainville, 1825 accepted as Psammechinus microtuberculatus (Blainville, 1825) (transferred to Psammechinus)
    4. Species Echinus (Psammechinus) semituberculatus Valenciennes in L. Agassiz, 1846 accepted as Lytechinus semituberculatus (Valenciennes in L. Agassiz, 1846) (transferred to Lytechinus)
    5. Species Echinus (Psammechinus) verruculatus Lütken, 1864 accepted as Nudechinus verruculatus (Lütken, 1864) (transferred to Nudechinus)
11. Subgenus Echinus (Strongylocentrotus) Brandt, 1835 accepted as Strongylocentrotus Brandt, 1835 (accepted at genus rank)
12. Subgenus Echinus (Toxopneustes) L. Agassiz, 1841 accepted as Toxopneustes L. Agassiz, 1841 (accepted at genus rank)
    1. Species Echinus (Toxopneustes) albidus (L. Agassiz, 1841) accepted as Sphaerechinus granularis (Lamarck, 1816) (subjective junior synonym)
    2. Species Echinus (Toxopneustes) brevispinosus (Blainville, 1825) accepted as Sphaerechinus granularis (Lamarck, 1816) (subjective junior synonym)
    3. Species Echinus (Toxopneustes) complanatus L. Agassiz & Desor, 1846 accepted as Paracentrotus lividus (Lamarck, 1816) (subjective junior synonym)
    4. Species Echinus (Toxopneustes) concavus L. Agassiz in L. Agassiz & Desor, 1846 accepted as Paracentrotus lividus (Lamarck, 1816) (subjective junior synonym)
    5. Species Echinus (Toxopneustes) delalandi L. Agassiz & Desor, 1846 accepted as Heliocidaris erythrogramma (Valenciennes, 1846) (subjective junior synonym)
    6. Species Echinus (Toxopneustes) droebachiensis (O.F. Müller, 1776) accepted as Strongylocentrotus droebachiensis (O.F. Müller, 1776) (transferred to Strongylocentrotus)
    7. Species Echinus (Toxopneustes) dübenii L. Agassiz in L. Agassiz & Desor, 1846 accepted as Strongylocentrotus droebachiensis (O.F. Müller, 1776) (incorrect original spelling (mandatory changed according to ICZN 4th Ed. Article 32.5.2.1.))
    8. Species Echinus (Toxopneustes) gibbosus L. Agassiz & Desor, 1846 accepted as Caenocentrotus gibbosus (L. Agassiz in L. Agassiz & Desor, 1846) (transferred to Caenocentrosus)
    9. Species Echinus (Toxopneustes) granularis (Lamarck, 1816) accepted as Sphaerechinus granularis (Lamarck, 1816) (transferred to Sphaerechinus)
    10. Species Echinus (Toxopneustes) lividus (Lamarck, 1816) accepted as Paracentrotus lividus (Lamarck, 1816) (transferred to Paracentrotus)
    11. Species Echinus (Toxopneustes) neglectus Lamarck, 1816 represented as Echinus neglectus Lamarck, 1816
    12. Species Echinus (Toxopneustes) duebenii L. Agassiz in L. Agassiz & Desor, 1846 (uncertain > nomen dubium, possible subjective junior synonym of Strongylocentrotus pallidus)
13. Subgenus Echinus (Tripneustes) L. Agassiz, 1841 accepted as Tripneustes L. Agassiz, 1841 (accepted at genus rank)
    1. Species Echinus (Tripneustes) sardica auct. accepted as Tripneustes gratilla (Linnaeus, 1758) (misidentification)
14. Species Echinus aciculatus Hupé, 1857 accepted as Paracentrotus gaimardi (Blainville, 1825) (subjective junior synonym)
15. Species Echinus acufer de Blainville, 1825 accepted as Echinometra lucunter (Linnaeus, 1758) (subjective junior synonym)
16. Species Echinus acutus Lamarck, 1816 accepted as Gracilechinus acutus (Lamarck, 1816) (transferred to Gracilechinus)
17. Species Echinus aequituberculatus Blainville, 1825 accepted as Arbacia lixula (Linnaeus, 1758) (subjective junior synonym)
18. Species Echinus affinis Mortensen, 1903 accepted as Gracilechinus affinis (Mortensen, 1903) (transferred to Gracilechinus)
19. Species Echinus albidus L. Agassiz, 1841 accepted as Sphaerechinus granularis (Lamarck, 1816) (subjective junior synonym)
20. Species Echinus albocinctus Hutton, 1872 accepted as Pseudechinus albocinctus (Hutton, 1872) (transferred to Pseudechinus)
21. Species Echinus albus Molina, 1782 accepted as Loxechinus albus (Molina, 1782) (transferred to Loxechinus)
22. Species Echinus alexandri Danielssen & Koren, 1883 accepted as Gracilechinus alexandri (Danielssen & Koren, 1883) (transferred to Gracilechinus)
23. Species Echinus alternatus Deslongchamps, 1824 accepted as Echinus atternatus Bory de Saint Vincent in Bruguière, 1827 accepted as Mespilia globulus (Linnaeus, 1758) (misspelling)
24. Species Echinus angulosus A. Agassiz, 1872 accepted as Nudechinus verruculatus (Lütken, 1864) (subjective junior synonym; junior homonym (non Echinus angulosus (Leske, 1778) = Parechinus angulosus))
25. Species Echinus armatus de Meijere, 1903 accepted as Selenechinus armatus (de Meijere, 1902) (transferred to Selenechinus)
26. Species Echinus atlanticus Mortensen, 1903 accepted as Gracilechinus atlanticus (Mortensen, 1903)
27. Species Echinus atratus Linnaeus, 1758 accepted as Podophora atrata (Linnaeus, 1758) accepted as Colobocentrotus (Podophora) atratus (Linnaeus, 1758) (transferred to Podophora)
28. Species Echinus atternatus Bory de Saint Vincent in Bruguière, 1827 accepted as Mespilia globulus (Linnaeus, 1758) (subjective junior synonym)
29. Species Echinus aurantiacus accepted as Echinus auranticus Blainville, 1825 accepted as Echinus esculentus Linnaeus, 1758 (misspelling)
30. Species Echinus auranticus Blainville, 1825 accepted as Echinus esculentus Linnaeus, 1758 (subjective junior synonym)
31. Species Echinus auritus (Leske, 1778) accepted as Echinodiscus auritus Leske, 1778 accepted as Sculpsitechinus auritus (Leske, 1778) (unaccepted combination)
32. Species Echinus basteri Gmelin, 1791 accepted as Psammechinus miliaris (P.L.S. Müller, 1771) (subjective junior synonym)
33. Species Echinus biforis Gmelin, 1791 accepted as Echinodiscus bisperforatus Leske, 1778 (subjective junior synonym)
34. Species Echinus blainvillei Des Moulins, 1837 accepted as Lytechinus variegatus (Lamarck, 1816) (subjective junior synonym)
35. Species Echinus brevispinosus Blainville, 1825 accepted as Sphaerechinus granularis (Lamarck, 1816) (subjective junior synonym)
36. Species Echinus calamaris Pallas, 1774 accepted as Echinothrix calamaris (Pallas, 1774) (tranferred to Echinothrix)
37. Species Echinus calamarus Pallas, 1774 accepted as Echinothrix calamaris (Pallas, 1774) (transferred to Echinothrix)
38. Species Echinus cantaber Lambert & Thiéry, 1914 accepted as Echinus acutus norvegicus Düben & Koren, 1844 accepted as Gracilechinus acutus norvegicus (Düben & Koren, 1844) (subjective junior synonym)
39. Species Echinus carinatus Blainville, 1825 accepted as Heterocentrotus mamillatus (Linnaeus, 1758) (subjective junior synonym)
40. Species Echinus castaneus Perry, 1810 accepted as Heterocentrotus mamillatus (Linnaeus, 1758) (subjective junior synonym)
41. Species Echinus chlorocentrotus Des Moulins, 1837 accepted as Strongylocentrotus droebachiensis (O.F. Müller, 1776) (subjective junior synonym)
42. Species Echinus chloroticus Valenciennes, 1846 accepted as Evechinus chloroticus (Valenciennes, 1846) (transferred to Evechinus)
43. Species Echinus cidaris Linnaeus, 1758 accepted as Cidaris cidaris (Linnaeus, 1758) (transferred to Cidaris)
44. Species Echinus cordatum Pennant, 1777 accepted as Echinocardium cordatum (Pennant, 1777) (transferred to Echinocardium)
45. Species Echinus cordatus Pennant, 1777 accepted as Echinocardium cordatum (Pennant, 1777) (transferred to Echinocardium)
46. Species Echinus coronalis (Leske, 1778) accepted as Echinothrix diadema (Linnaeus, 1758) (subjective junior synonym)
47. Species Echinus darnleyensis Tenison-Woods, 1878 accepted as Nudechinus darnleyensis (Tenison-Woods, 1878) (transferred to Nudechinus)
48. Species Echinus decadactylos Gmelin, 1791 accepted as Heliophora orbiculus (Linnaeus, 1758) (subjective junior synonym)
49. Species Echinus decoratus L. Agassiz, 1841 accepted as Psammechinus microtuberculatus (Blainville, 1825) (subjective junior synonym)
50. Species Echinus depressus Blainville, 1825 accepted as Toxopneustes maculatus (Lamarck, 1816) (subjective junior synonym)
51. Species Echinus depressus G.O. Sars, 1871 accepted as Echinus acutus Lamarck, 1816 accepted as Gracilechinus acutus (Lamarck, 1816) (subjective junior synonym)
52. Species Echinus diadema Linnaeus, 1758 accepted as Echinothrix diadema (Linnaeus, 1758) (transferred to Echinothrix)
53. Species Echinus disjunctus von Martens, 1866 accepted as Pseudocentrotus depressus (A. Agassiz, 1864) (subjective junior synonym)
54. Species Echinus dröbachiensis O.F. Müller, 1776 accepted as Strongylocentrotus droebachiensis (O.F. Müller, 1776) (incorrect original spelling (mandatory changed according to ICZN 4th Ed. Article 32.5.2.1.))
55. Species Echinus droebachiensis O.F. Müller, 1776 accepted as Strongylocentrotus droebachiensis (O.F. Müller, 1776) (transferred to Strongylocentrotus)
56. Species Echinus dubius Blainville, 1825 accepted as Sphaerechinus granularis (Lamarck, 1816) (subjective junior synonym)
57. Species Echinus dufresnii Blainville, 1825 accepted as Arbacia dufresnii (Blainville, 1825)
58. Species Echinus elegans Düben & Koren, 1844 accepted as Gracilechinus elegans (Düben & Koren, 1844) (transferred to Gracilechinus)
59. Species Echinus elevatus Hutton, 1872 accepted as Amblypneustes elevatus (Hutton, 1872) (transferred to Amblypneustes)
60. Species Echinus emarginatus (Leske, 1778) accepted as Encope emarginata (Leske, 1778) (transferred to Encope)
61. Species Echinus equituberculatus Blainville, 1825 accepted as Arbacia lixula (Linnaeus, 1758) (misspelling for Echinus aequituberculatus)
62. Species Echinus erythrogrammus Valenciennes, 1846 accepted as Heliocidaris erythrogramma (Valenciennes, 1846) (transferred to Heliocidaris)
63. Species Echinus eſculentus Linnaeus, 1758 accepted as Echinus esculentus Linnaeus, 1758 (incorrect original spelling (ICZN 4th ed., Art. 32.5.))
64. Species Echinus euryporus H.L. Clark, 1912 accepted as Gracilechinus euryporus (H.L. Clark, 1912) (transferred to Gracilechinus)
65. Species Echinus excavatus Blainville, 1825 accepted as Lytechinus variegatus (Lamarck, 1816) (subjective junior synonym)
66. Species Echinus fasciatus Lamarck, 1816 accepted as Tripneustes gratilla (Linnaeus, 1758) (subjective junior synonym)
67. Species Echinus flemingii Forbes, 1841 accepted as Echinus acutus Lamarck, 1816 accepted as Gracilechinus acutus (Lamarck, 1816) (subjective junior synonym)
68. Species Echinus fueginus Philippi, 1898 accepted as Pseudechinus magellanicus (Philippi, 1857) (subjective junior synonym)
69. Species Echinus gaimardi Blainville, 1825 accepted as Paracentrotus gaimardi (Blainville, 1825) (transferred to Paracentrotus)
70. Species Echinus globiformis Lamarck, 1816 accepted as Echinus esculentus Linnaeus, 1758 (subjective junior synonym)
71. Species Echinus globulus Linnaeus, 1758 accepted as Mespilia globulus (Linnaeus, 1758) (transferred to Mespilia)
72. Species Echinus gracilis A. Agassiz, 1869 accepted as Gracilechinus gracilis (A. Agassiz, 1869) (transferred to Gracilechinus)
73. Species Echinus grandinosus Valenciennes, 1846 accepted as Arbacia lixula (Linnaeus, 1758) (subjective junior synonym)
74. Species Echinus grandis Gmelin, 1791 accepted as Plagiobrissus grandis (Gmelin, 1791) (transferred to Plagiobrissus)
75. Species Echinus granularis Say, 1827 non Lamarck, 1816 accepted as Strongylocentrotus Brandt, 1835 (misidentification (possibly a Strongylocentrotus pallidus according to Jensen, 1974))
76. Species Echinus granularis de Lamarck, 1816 accepted as Sphaerechinus granularis (Lamarck, 1816) (transferred to Sphaerechinus)
77. Species Echinus granulatus Gould, 1841 accepted as Strongylocentrotus pallidus (Sars G.O., 1872) (subjective junior synonym)
78. Species Echinus gratilla Linnaeus, 1758 accepted as Tripneustes gratilla (Linnaeus, 1758) (transferred to Tripneustes)
79. Species Echinus griseus Blainville, 1825 accepted as Amblypneustes ovum (Lamarck, 1816) (subjective junior synonym)
80. Species Echinus hexaporus Gmelin, 1791 accepted as Leodia sexiesperforata (Leske, 1778) (subjective junior synonym)
81. Species Echinus hirsuta Döderlein, 1905 accepted as Echinus gilchristi Bell, 1904 (subjective junior synonym)
82. Species Echinus hirsutus Döderlein, 1905 accepted as Echinus gilchristi Bell, 1904 (subjective junior synonym)
83. Species Echinus horridus A. Agassiz, 1879 accepted as Dermechinus horridus (A. Agassiz, 1879)
84. Species Echinus huttoni (Benham, 1908) accepted as Pseudechinus huttoni Benham, 1908 (unaccepted combination)
85. Species Echinus inflatus Blainville, 1825 accepted as Tripneustes gratilla (Linnaeus, 1758) (subjective junior synonym)
86. Species Echinus lacunosus Linnaeus, 1758 accepted as Schizaster lacunosus (Linnaeus, 1758)
87. Species Echinus lacunoſus Linnaeus, 1758 accepted as Echinus lacunosus Linnaeus, 1758 accepted as Schizaster lacunosus (Linnaeus, 1758) (incorrect original spelling (ICZN 4th ed., Art. 32.5.))
88. Species Echinus laganoides Desor in L. Agassiz & Desor, 1846 accepted as Echinostrephus molaris (Blainville, 1825) (subjective junior synonym)
89. Species Echinus laganum (Leske, 1778) accepted as Laganum laganum (Leske, 1778) (transferred to Laganum)
90. Species Echinus leschenaulti Blainville, 1825 accepted as Stomopneustes variolaris (Lamarck, 1816) (subjective junior synonym)
91. Species Echinus lezaroides Perrier, 1869 accepted as Echinostrephus molaris (Blainville, 1825) (unaccepted > nomen nudum, treated as subjective junior synonym of Echinostrephus molaris by Mortensen (1943b: p. 311))
92. Species Echinus lithophagus Leach in Tilloch, 1812 accepted as Paracentrotus lividus (Lamarck, 1816) (nomen nudum)
93. Species Echinus lividus Lamarck, 1816 accepted as Paracentrotus lividus (Lamarck, 1816) (transferred to Paracentrotus)
94. Species Echinus lixula Linnaeus, 1758 accepted as Arbacia lixula (Linnaeus, 1758) (transferred to Arbacia)
95. Species Echinus lobatulus Walker & Jacob, 1798 accepted as Cibicides lobatulus (Walker & Jacob, 1798) accepted as Lobatula lobatula (Walker & Jacob, 1798) (foraminiferan erroneously identified as an echinoid)
96. Species Echinus lobatus Blainville, 1825 accepted as Echinometra lucunter (Linnaeus, 1758) (subjective junior synonym)
97. Species Echinus loculatus Blainville, 1825 accepted as Arbacia lixula (Linnaeus, 1758) (subjective junior synonym)
98. Species Echinus lucidus Döderlein, 1885 accepted as Gracilechinus lucidus (Döderlein, 1885) (transferred to Gracilechinus)
99. Species Echinus lucunter Linnaeus, 1758 accepted as Echinometra lucunter (Linnaeus, 1758) (transferred to Echinometra)
100. Species Echinus maculatus Lamarck, 1816 accepted as Toxopneustes maculatus (Lamarck, 1816) (transferred to Toxopneustes)
101. Species Echinus maculosus Gmelin, 1791 accepted as Metalia spatagus (Linnaeus, 1758) (subjective junior synonym)
102. Species Echinus magellanicus Philippi, 1857 accepted as Pseudechinus magellanicus (Philippi, 1857) (transferred to Pseudechinus)
103. Species Echinus mamillatus Linnaeus, 1758 accepted as Heterocentrotus mamillatus (Linnaeus, 1758) (transferred to Heterocentrotus)
104. Species Echinus mammillatus Linnaeus, 1758 accepted as Heterocentrotus mamillatus (Linnaeus, 1758) (incorrect subsequent spelling)
105. Species Echinus margaritaceus Lamarck, 1816 accepted as Pseudechinus magellanicus (Philippi, 1857) (nomen dubium)
106. Species Echinus marinus Klein, 1753 (unaccepted > unavailable name, pre-Linnaean)
107. Species Echinus mathaei Blainville, 1825 accepted as Echinometra mathaei (Blainville, 1825)
108. Species Echinus maugei Blainville, 1825 accepted as Echinometra lucunter (Linnaeus, 1758) (subjective junior synonym)
109. Species Echinus microstoma Thomson, 1872 accepted as Echinus acutus norvegicus Düben & Koren, 1844 accepted as Gracilechinus acutus norvegicus (Düben & Koren, 1844) (subjective junior synonym)
110. Species Echinus microtuberculatus Blainville, 1825 accepted as Psammechinus microtuberculatus (Blainville, 1825) (transferred to Psammechinus)
111. Species Echinus miliaris P.L.S. Müller, 1771 accepted as Psammechinus miliaris (P.L.S. Müller, 1771) (transferred to Psammechinus)
112. Species Echinus minimus Blainville, 1825 accepted as Parechinus angulosus (Leske, 1778) (subjective junior synonym)
113. Species Echinus minutus Gmelin, 1791 (unaccepted, subjective junior synonym)
114. Species Echinus mola Blainville, 1825 (unaccepted, incorrect subsequent spelling)
115. Species Echinus molaris Blainville, 1825 (unaccepted)
116. Species Echinus multicolor Yoshiwara, 1898 (unaccepted, transferred to Nudechinus)
117. Species Echinus multidentatus H.L. Clark, 1925 (unaccepted)
118. Species Echinus neapolitanus Delle Chiaje, 1825 (unaccepted, subjective junior synonym)
119. Species Echinus neumayeri Meisser, 1900 (unaccepted, transferred to Sterechinus)
120. Species Echinus niger Molina, 1782 (unaccepted > superseded combination, transferred to Arbacia by Agassiz & Desor (1846))
121. Species Echinus norvegicus Düben & Koren, 1844 (unaccepted, reduced to subspecies rank )
122. Species Echinus oblonga (unaccepted, misspelling)
123. Species Echinus oblongus Blainville, 1825 (unaccepted, transferred to Echinometra)
124. Species Echinus octodactylos Gmelin, 1791 (unaccepted, subjective junior synonym)
125. Species Echinus omalostoma Valenciennes, 1846 (unaccepted, subjective junior synonym)
126. Species Echinus orbiculus Linnaeus, 1758 (unaccepted, transferred to Heliophora)
127. Species Echinus oviformis Gmelin, 1791 (unaccepted, subjective junior synonym)
128. Species Echinus ovum Lamarck, 1816 (unaccepted, transferred to Amblypneustes)
129. Species Echinus pallidus Lamarck, 1816 (unaccepted, transferred to Amblypneustes)
130. Species Echinus parvituberculatus Blainville, 1834 (unaccepted, subjective junior synonym)
131. Species Echinus paucituberculatus Blainville, 1825 (unaccepted, subjective junior synonym)
132. Species Echinus pedifer Blainville, 1825 (unaccepted, transferred to Colobocentrotus (Podophora))
133. Species Echinus pentagonus Lamarck, 1816 (unaccepted, subjective junior synonym)
134. Species Echinus pentaporus Gmelin, 1791 (unaccepted, subjective junior synonym)
135. Species Echinus peronii Blainville, 1825 (unaccepted, subjective junior synonym)
136. Species Echinus pictus (Norman, 1869) (unaccepted, subjective junior synonym)
137. Species Echinus pileolus Lamarck, 1816 (unaccepted)
138. Species Echinus placenta Linnaeus, 1758 (unaccepted, transferred to Arachnoides)
139. Species Echinus polyzonalis Lamarck, 1816 (unaccepted, subjective junior synonym)
140. Species Echinus porosus Valenciennes, 1846 (unaccepted, subjective junior synonym)
141. Species Echinus pseudomelo Blainville, 1825 (unaccepted, subjective junior synonym)
142. Species Echinus pseudo-melo Blainville, 1825 (unaccepted, incorrect original spelling (mandatory changed according to ICZN 4th Ed. Article 32.5.2.3. - removal of hyphen))
143. Species Echinus pulchellus L. Agassiz, 1841 (unaccepted, subjective junior synonym)
144. Species Echinus pulvinulus Pennant, 1812 (unaccepted, subjective junior synonym)
145. Species Echinus punctiferus Bory de Saint Vincent in Bruguière, 1827 (unaccepted, subjective junior synonym)
146. Species Echinus punctulatus Lamarck, 1816 (unaccepted, transferred to Arbacia)
147. Species Echinus purpuratus Stimpson, 1857 (unaccepted, transferred to Strongylocentrotus)
148. Species Echinus purpurescens Valenciennes, 1846 (unaccepted, subjective junior synonym)
149. Species Echinus purpureus Risso, 1826 (unaccepted, subjective junior synonym)
150. Species Echinus pusillus (O.F. Müller, 1776) (unaccepted, transferred to Echinocyamus)
151. Species Echinus pustulatus L. Agassiz, 1841 (unaccepted, subjective junior synonym)
152. Species Echinus pustulosus (Leske, 1778) (unaccepted, subjective junior synonym)
153. Species Echinus quinquangulosus (unaccepted, misspelling)
154. Species Echinus quinqueangulatus Blainville, 1825 (unaccepted, subjective junior synonym)
155. Species Echinus quinqueangulosus (unaccepted, misspelling)
156. Species Echinus quoy Blainville, 1825 (unaccepted, subjective junior synonym)
157. Species Echinus quoyi Blainville, 1825 (unaccepted, incorrect subsequent spelling)
158. Species Echinus radiatus (Leske, 1778) (unaccepted, transferred to Astropyga)
159. Species Echinus rarispinus G.O. Sars, 1871 (unaccepted > nomen nudum, manuscript name (for globular specimens of E. acutus norvegicus))
160. Species Echinus reticulatus Linnaeus, 1758 (unaccepted, tranferred to Clypeaster)
161. Species Echinus robillardi de Loriol, 1883 (unaccepted, transferred to Gymnechinus)
162. Species Echinus rosaceus Linnaeus, 1758 (unaccepted, transferred to Clypeaster)
163. Species Echinus roſaceus Linnaeus, 1758 (unaccepted, incorrect original spelling (ICZN 4th ed., Art. 32.5.))
164. Species Echinus sardicus sensu Delle Chiaje, 1841 (unaccepted, misidentification)
165. Species Echinus saxatilis Linnaeus, 1758 (unaccepted, subjective junior synonym - but see below in notes section)
166. Species Echinus schwartzii Nilsson, 1817 (unaccepted, misspelling)
167. Species Echinus sculptus Lamarck, 1816 (unaccepted, subjective junior synonym)
168. Species Echinus spatagus Linnaeus, 1758 (unaccepted, transferred to Metalia)
169. Species Echinus spatuliger Valenciennes, 1846 (unaccepted, transferred to Arbacia)
170. Species Echinus sphaera O.F. Müller, 1776 (unaccepted, subjective junior synonym)
171. Species Echinus sphaeroides Linnaeus, 1758 (unaccepted, transferred to Salmacis)
172. Species Echinus stellatus Gmelin, 1791 (unaccepted, transferred to Arbacia)
173. Species Echinus stenoporus Mortensen, 1942 (unaccepted, transferred to Gracilechinus)
174. Species Echinus subangularis Fleming, 1829 (unaccepted, subjective junior synonym)
175. Species Echinus subangulosus Lamarck, 1816 (unaccepted, subjective junior synonym)
176. Species Echinus subcaeruleus Lamarck, 1816 (unaccepted, subjective junior synonym)
177. Species Echinus subglobiformis Blainville, 1825 (unaccepted, subjective junior synonym)
178. Species Echinus swartzii Nilsson & Holst, 1817 (unaccepted, subjective junior synonym)
179. Species Echinus ſaxatilis Linnaeus, 1758 (unaccepted, incorrect original spelling (ICZN 4th ed., Art. 32.5.))
180. Species Echinus ſpatagus Linnaeus, 1758 (unaccepted, incorrect original spelling (ICZN 4th ed., Art. 32.5.))
181. Species Echinus ſphæroides Linnaeus, 1758 (unaccepted, incorrect original spelling (ICZN 4th ed., Art. 32.5.))
182. Species Echinus tenuispina Norman, 1868 (unaccepted, incorrect declination of species name)
183. Species Echinus toreumaticus (Leske, 1778) (unaccepted, subjective junior synonym)
184. Species Echinus trigonarius Lamarck, 1816 (unaccepted, transferred to Heterocentrotus)
185. Species Echinus tuberculatus Lamarck, 1816 (unaccepted, transferred to Heliocidaris)
186. Species Echinus tylodes H.L. Clark, 1912 (unaccepted, transferred to Gracilechinus)
187. Species Echinus variegatus Lamarck, 1816 (unaccepted, transferred to Lytechinus)
188. Species Echinus variegatus (Leske, 1778) (unaccepted, subjective junior synonym)
189. Species Echinus variolaris Lamarck, 1816 (unaccepted, transferred to Stomopneustes)
190. Species Echinus ventricosus Lamarck, 1816 (unaccepted, transferred to Tripneustes)
191. Species Echinus verruculatus (Lütken, 1864) (unaccepted, transferred to Nudechinus)
192. Species Echinus versicolor L. Agassiz, 1841 (unaccepted > nomen nudum, unavailable; mentioned in a list only; without description, illustration, or indication (ICZN 1999 Article 12.1.))
193. Species Echinus violaceus Blainville, 1825 (unaccepted, subjective junior synonym)
194. Species Echinus virens Düben & Koren, 1844 (unaccepted, subjective junior synonym)
195. Species Echinus virgatus Des Moulins, 1837 (unaccepted, subjective junior synonym)
196. Species Echinus vulgaris Blainville, 1825 (unaccepted, subjective junior synonym)
197. Species Echinus neglectus Lamarck, 1816 (uncertain > nomen dubium, possible subjective junior synonym of Strongylocentrotus droebachiensis or S. pallidus)
198. Species Echinus subangulosus de Blainville, 1826 (uncertain > nomen dubium)

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