1. Species Crepidula adunca G. B. Sowerby I, 1825
2. Species Crepidula aeola Dall, 1927
3. Species Crepidula aplysioides Reeve, 1859
4. Species Crepidula arenata (Broderip, 1834)
5. Species Crepidula argentina Simone, Pastorino & Penchaszadeh, 2000
6. Species Crepidula atrasolea Collin, 2000
7. Species Crepidula auricula Yokoyama, 1924 †
8. Species Crepidula badisparsa Collin, 2005
9. Species Crepidula bellardii Pavia, 2022 †
10. Species Crepidula cachimilla Cledón, Simone & Penchaszadeh, 2004
11. Species Crepidula carioca Simone, 2006
12. Species Crepidula cerithicola C. B. Adams, 1852
13. Species Crepidula cerithicola Guppy, 1895 (accepted > unreplaced junior homonym, of Crepidula cerithicola C. B. Adams, 1852)
14. Species Crepidula cochleare Basterot, 1825 †
15. Species Crepidula complanata Krauss, 1848
16. Species Crepidula convexa Say, 1822
17. Species Crepidula coquimbensis D. I. Brown & Olivares, 1996
18. Species Crepidula costifera Nomura & Hatai, 1936 †
19. Species Crepidula cruzana Nowell-Usticke, 1959
20. Species Crepidula cymbaeformis Conrad, 1844 †
21. Species Crepidula decussata O. Boettger, 1869 †
22. Species Crepidula depressa Say, 1822
23. Species Crepidula deprima Kensley & Pether, 1986 †
24. Species Crepidula derjugini A. N. Golikov & Kussakin, 1962
25. Species Crepidula excavata (Broderip, 1834)
26. Species Crepidula fimbriata Reeve, 1859
27. Species Crepidula fornicata (Linnaeus, 1758)
28. Species Crepidula gibbosa Defrance, 1818 †
29. Species Crepidula glottidiarum Dall, 1905
30. Species Crepidula gregaria G. B. Sowerby I, 1846 †
31. Species Crepidula huertae Collin, 2019
32. Species Crepidula incurva (Broderip, 1834)
33. Species Crepidula intratesta Simone, 2006
34. Species Crepidula jimboana Yokoyama, 1931 †
35. Species Crepidula lessonii (Broderip, 1834)
36. Species Crepidula lucenica Landau, 1984 †
37. Species Crepidula maculosa Conrad, 1846
38. Species Crepidula margarita Simone, 2006
39. Species Crepidula marginalis (Broderip, 1834)
40. Species Crepidula marisae T. Cossignani, 2020
41. Species Crepidula mniovnikensis Gerasimov, 1992 †
42. Species Crepidula moulinsii Michaud, 1829
43. Species Crepidula naticarum M. B. Williamson, 1905
44. Species Crepidula navicella (Lesson, 1831)
45. Species Crepidula navicula (Mörch, 1877)
46. Species Crepidula nikitini Gerasimov, 1992 †
47. Species Crepidula nivea C. B. Adams, 1852
48. Species Crepidula norrisiarum M. B. Williamson, 1905
49. Species Crepidula nummaria A. Gould, 1846
50. Species Crepidula onyx G. B. Sowerby I, 1824
51. Species Crepidula perforans Valenciennes, 1846
52. Species Crepidula philippiana Gallardo, 1977
53. Species Crepidula plana Say, 1822
54. Species Crepidula porcellana Lamarck, 1801
55. Species Crepidula protea A. d'Orbigny, 1841
56. Species Crepidula pyguaia Simone, 2006
57. Species Crepidula rostrata C. B. Adams, 1852
58. Species Crepidula striolata Menke, 1851
59. Species Crepidula subcentralis Cossmann, 1910 †
60. Species Crepidula symmetrica Nomura & Hatai, 1936 †
61. Species Crepidula unguiformis Lamarck, 1822
62. Species Crepidula ustulatulina Collin, 2002
63. Species Crepidula williamsi Coe, 1947
64. Species Crepidula wolfae Collin, 2019
65. Species Crepidula yokoyamai H. J. Finlay, 1930 †
66. Subgenus Crepidula (Bostrycapulus) Olsson & Harbison, 1953 accepted as Bostrycapulus Olsson & Harbison, 1953
    1. Species Crepidula (Bostrycapulus) gravispinosus (Kuroda & T. Habe, 1950) accepted as Bostrycapulus gravispinosus (Kuroda & T. Habe, 1950) (unaccepted > superseded combination)
67. Subgenus Crepidula (Crepipatella) Lesson, 1831 accepted as Crepipatella Lesson, 1831
    1. Species Crepidula (Crepipatella) nautiloides Lesson, 1833 accepted as Crepipatella dilatata (Lamarck, 1822)
68. Subgenus Crepidula (Ergea) [sic] accepted as Ergaea H. Adams & A. Adams, 1854 (misspelling)
    1. Species Crepidula (Ergea) scutum K. Martin, 1884 † accepted as Ergaea walshi (Reeve, 1859)
69. Subgenus Crepidula (Grandicrepidula) J. H. McLean, 1995 accepted as Grandicrepidula J. H. McLean, 1995 (original rank)
70. Subgenus Crepidula (Ianacus) Mörch, 1852 accepted as Crepidula Lamarck, 1799 (original rank)
71. Subgenus Crepidula (Siphopatella) [sic] accepted as Crepidula Lamarck, 1799 (misspelling of Syphopatella)
    1. Species Crepidula (Siphopatella) subcentralis Cossmann, 1910 † accepted as Crepidula subcentralis Cossmann, 1910 †
72. Species Crepidula aculeata (Gmelin, 1791) sensu Zenetos et al.2004 accepted as Bostrycapulus odites Collin, 2005 (misapplication)
73. Species Crepidula aculeata (Gmelin, 1791) accepted as Bostrycapulus aculeatus (Gmelin, 1791) (unaccepted > superseded combination)
74. Species Crepidula acuta H. C. Lea, 1842 accepted as Crepidula convexa Say, 1822 (unaccepted > junior subjective synonym)
75. Species Crepidula altavillensis Defrance, 1818 † accepted as Tomostoma altavillense (Defrance, 1818) † (original combination)
76. Species Crepidula bilobata Reeve, 1859 accepted as Crepidula lingulata A. Gould, 1846 accepted as Crepipatella lingulata (A. Gould, 1846)
77. Species Crepidula bosqueti Le Renard, 1994 † accepted as Crepidula decussata O. Boettger, 1869 †
78. Species Crepidula calceolina Deshayes, 1830 accepted as Crepidula unguiformis Lamarck, 1822 (synonym)
79. Species Crepidula californica Tryon, 1886 accepted as Crepidula aculeata (Gmelin, 1791) accepted as Bostrycapulus aculeatus (Gmelin, 1791) (unaccepted > junior subjective synonym)
80. Species Crepidula calyptraeiformis Deshayes, 1830 accepted as Bostrycapulus calyptraeiformis (Deshayes, 1830) (synonym)
81. Species Crepidula candida Risso, 1826 accepted as Crepidula unguiformis Lamarck, 1822 (synonym)
82. Species Crepidula capensis Quoy & Gaimard, 1835 accepted as Crepipatella capensis (Quoy & Gaimard, 1835) (original combination)
83. Species Crepidula cataldi Parenzan, 1970 accepted as Crepidula unguiformis Lamarck, 1822 (synonym)
84. Species Crepidula coei S. S. Berry, 1950 accepted as Crepidula naticarum M. B. Williamson, 1905
85. Species Crepidula contorta Quoy & Gaimard, 1835 accepted as Maoricrypta monoxyla (Lesson, 1831) (junior subjective synonym)
86. Species Crepidula convexa Yokoyama, 1925 † accepted as Crepidula yokoyamai H. J. Finlay, 1930 † (invalid, not Say, 1822)
87. Species Crepidula costata Deshayes, 1830 accepted as Maoricrypta costata (G. B. Sowerby I, 1824) (homonym and synonym of C. costata G.B. Sowerby I, 1824)
88. Species Crepidula costata S. G. Morton, 1829 † accepted as Crepidula aculeata var. costata S. G. Morton, 1829 † (unaccepted > superseded rank)
89. Species Crepidula costata G. B. Sowerby I, 1824 accepted as Maoricrypta costata (G. B. Sowerby I, 1824) (superseded combination)
90. Species Crepidula costulata Dunker, 1852 accepted as Crepidula incurva (Broderip, 1834)
91. Species Crepidula crepidula (Linnaeus, 1767) accepted as Crepidula unguiformis Lamarck, 1822
92. Species Crepidula cretacea J. Müller, 1851 † accepted as Damesia cretacea (J. Müller, 1851) † (unaccepted > superseded combination)
93. Species Crepidula densata Conrad, 1843 accepted as Crepidula fornicata (Linnaeus, 1758) (synonym)
94. Species Crepidula densistria Suter, 1917 † accepted as Grandicrepidula densistria (Suter, 1917) † (superseded combination)
95. Species Crepidula depressa Deshayes, 1830 accepted as Crepidula dilatata Lamarck, 1822 accepted as Crepipatella dilatata (Lamarck, 1822)
96. Species Crepidula deshayesii de Folin, 1867 accepted as Crepidula unguiformis Lamarck, 1822
97. Species Crepidula desmoulinsi Locard, 1886 accepted as Crepidula moulinsii Michaud, 1829 (synonym)
98. Species Crepidula dilatata Lamarck, 1822 accepted as Crepipatella dilatata (Lamarck, 1822) (original combination)
99. Species Crepidula dorsata (Broderip, 1834) accepted as Crepipatella dorsata (Broderip, 1834)
100. Species Crepidula dubitabilis Tate, 1893 † accepted as Maoricrypta dubitabilis (Tate, 1893) † (unaccepted > superseded combination)
101. Species Crepidula excisa R. A. Philippi, 1849 accepted as Ergaea walshi (Reeve, 1859) (unaccepted > nomen oblitum, declared nomen oblitum by Hoagland (1977))
102. Species Crepidula explanata A. Gould, 1853 accepted as Crepidula perforans Valenciennes, 1846 (junior synonym)
103. Species Crepidula exuviata Reeve, 1859 accepted as Crepidula perforans Valenciennes, 1846
104. Species Crepidula fasciata de Roissy, 1805 accepted as Crepidula unguiformis Lamarck, 1822
105. Species Crepidula fecunda Gallardo, 1979 accepted as Crepipatella peruviana (Lamarck, 1822)
106. Species Crepidula fissurata G. B. Sowerby II, 1883 accepted as Crepipatella lingulata (A. Gould, 1846)
107. Species Crepidula foliacea (Broderip, 1834) accepted as Crepipatella foliacea (Broderip, 1834) (unaccepted > superseded combination)
108. Species Crepidula gibbosa Defrance, 1818 sensu Deshayes, 1836 accepted as Crepidula moulinsii Michaud, 1829 (misapplication)
109. Species Crepidula glauca Say, 1822 accepted as Crepidula convexa Say, 1822 (unaccepted > junior subjective synonym)
110. Species Crepidula grandis Middendorff, 1849 accepted as Grandicrepidula grandis (Middendorff, 1849) (original combination)
111. Species Crepidula gravispinosa Kuroda & T. Habe, 1950 accepted as Bostrycapulus gravispinosus (Kuroda & T. Habe, 1950) (unaccepted > superseded combination)
112. Species Crepidula hainsworthii R. M. Johnston, 1885 † accepted as Maoricrypta hainsworthii (R. M. Johnston, 1885) † (unaccepted > superseded combination)
113. Species Crepidula haliotoidea Marwick, 1926 † accepted as Maoricrypta haliotoidea (Marwick, 1926) † (superseded combination)
114. Species Crepidula hochstetteriana Wilckens, 1922 † accepted as Maoricrypta radiata (F. W. Hutton, 1873) † (junior subjective synonym)
115. Species Crepidula holiotoidea Fischer von Waldheim, 1807 accepted as Crepidula haliotoidea Fischer von Waldheim, 1807 (inadvertent error)
116. Species Crepidula immersa Angas, 1865 accepted as Maoricrypta immersa (Angas, 1865) (unaccepted > superseded combination)
117. Species Crepidula incurva Zittel, 1865 † accepted as Crepidula wilckensi Finlay, 1924 † accepted as Maoricrypta radiata (F. W. Hutton, 1873) † (invalid: not Broderip, 1834. Crepidula wilckensi Finlay, 1924 is replacement name)
118. Species Crepidula italica Defrance, 1818 accepted as Crepidula unguiformis Lamarck, 1822
119. Species Crepidula lamina H. C. Lea, 1843 accepted as Crepidula plana Say, 1822 (unaccepted > junior subjective synonym)
120. Species Crepidula lineolata Deshayes, 1830 accepted as Crepidula costata G. B. Sowerby I, 1824 accepted as Maoricrypta costata (G. B. Sowerby I, 1824) (possible synonym)
121. Species Crepidula lingulata A. Gould, 1846 accepted as Crepipatella lingulata (A. Gould, 1846) (original combination)
122. Species Crepidula lirata Reeve, 1859 accepted as Crepidula incurva (Broderip, 1834)
123. Species Crepidula maculata Quoy & Gaimard, 1832 accepted as Sigapatella novaezelandiae (Lesson, 1831) (junior subjective synonym)
124. Species Crepidula matajiroi Makiyama, 1957 † accepted as Crepidula auricula Yokoyama, 1924 † (unnecessary replacement name for Crepidula auricula Yokoyama, 1924 (not a homonym of Calyptraea auricula Gmelin))
125. Species Crepidula minuta Middendorff, 1849 accepted as Crepidula nummaria A. Gould, 1846
126. Species Crepidula monoxyla (Lesson, 1831) accepted as Maoricrypta monoxyla (Lesson, 1831) (superseded combination)
127. Species Crepidula mutabilis Millet, 1865 † accepted as Crepidula gibbosa Defrance, 1818 †
128. Species Crepidula nautiloides Lesson, 1833 accepted as Crepipatella dilatata (Lamarck, 1822)
129. Species Crepidula navicelloides P. P. Carpenter, 1864 accepted as Crepidula nummaria A. Gould, 1846
130. Species Crepidula nebulata Mabille, 1895 accepted as Crepidula nivea C. B. Adams, 1852
131. Species Crepidula orbella Yokoyama, 1920 accepted as Ergaea walshi (Reeve, 1859) (unaccepted > junior subjective synonym)
132. Species Crepidula orbiculata Dall, 1919 accepted as Crepipatella lingulata (A. Gould, 1846)
133. Species Crepidula osculans C. B. Adams, 1852 accepted as Plesiothyreus osculans (C. B. Adams, 1852) (original combination)
134. Species Crepidula ostraeiformis Grabau & S. G. King, 1928 accepted as Siphopatella walshi (Reeve, 1859) accepted as Ergaea walshi (Reeve, 1859)
135. Species Crepidula pallida (Broderip, 1834) accepted as Calyptraea pallida Broderip, 1834
136. Species Crepidula parisiensis Cossmann, 1883 † accepted as Crepidula decussata O. Boettger, 1869 † (invalid: junior homonym of Crepidula parisiensis Deshayes, 1830; C. bosqueti is a replacement name)
137. Species Crepidula patula Deshayes, 1830 accepted as Crepipatella peruviana (Lamarck, 1822)
138. Species Crepidula peruviana Lamarck, 1822 accepted as Crepipatella peruviana (Lamarck, 1822) (unaccepted > superseded combination)
139. Species Crepidula plana (A. Adams & Reeve, 1850) accepted as Ergaea walshi (Reeve, 1859)
140. Species Crepidula ponderosa (H. C. Lea, 1846) † accepted as Crepidula fornicata var. ponderosa (H. C. Lea, 1846) † (unaccepted > superseded rank)
141. Species Crepidula pulchella Aradas, 1846 accepted as Crepidula unguiformis Lamarck, 1822 (synonym)
142. Species Crepidula radiata (F. W. Hutton, 1873) † accepted as Maoricrypta radiata (F. W. Hutton, 1873) † (superseded combination)
143. Species Crepidula rhyssema Olsson & Harbison, 1953 accepted as Crepidula plana Say, 1822 (unaccepted > junior subjective synonym)
144. Species Crepidula rostrata Conrad, 1870 † accepted as Crepidula fornicata rostrata Conrad, 1870 † (unaccepted > junior homonym, invalid; not C. B. Adams, 1852)
145. Species Crepidula rostriformis A. Gould, 1846 accepted as Crepidula adunca G. B. Sowerby I, 1825 (junior synonym)
146. Species Crepidula rugosa P. P. Carpenter, 1857 accepted as Crepidula onyx G. B. Sowerby I, 1824 (invalid: junior homonym of Crepidula rugosa Anton, 1838)
147. Species Crepidula rugulosa Dunker, 1846 accepted as Crepipatella capensis (Quoy & Gaimard, 1835)
148. Species Crepidula sandaliformis de Serres, 1830 accepted as Crepidula unguiformis Lamarck, 1822
149. Species Crepidula sandalina Deshayes, 1833 accepted as Crepidula unguiformis Lamarck, 1822
150. Species Crepidula scabies (Reeve, 1859) accepted as Ergaea walshi (Reeve, 1859)
151. Species Crepidula sinuosa W. Turton, 1825 accepted as Crepidula unguiformis Lamarck, 1822
152. Species Crepidula solida Hinds, 1845 accepted as Crepidula adunca G. B. Sowerby I, 1825
153. Species Crepidula spinosa Conrad, 1843 † accepted as Crepidula aculeata var. spinosa Conrad, 1843 † (unaccepted > superseded rank)
154. Species Crepidula squama (Broderip, 1834) accepted as Crepidula striolata Menke, 1851
155. Species Crepidula strigellata Dunker, 1853 accepted as Crepidula striolata Menke, 1851
156. Species Crepidula sulin Dautzenberg, 1912 accepted as Crepidula porcellana Lamarck, 1801 (synonym)
157. Species Crepidula tomentosa Quoy & Gaimard, 1832 accepted as Crepidula aculeata (Gmelin, 1791) accepted as Bostrycapulus aculeatus (Gmelin, 1791)
158. Species Crepidula umbilicata R. M. Johnston, 1885 † accepted as Calyptropsis umbilicata (R. M. Johnston, 1885) † (superceded combination)
159. Species Crepidula uncata Menke, 1847 accepted as Crepidula adunca G. B. Sowerby I, 1825
160. Species Crepidula uncinata R. A. Philippi, 1887 accepted as Crepidula dilatata Lamarck, 1822 accepted as Crepipatella dilatata (Lamarck, 1822)
161. Species Crepidula unguis A. d'Orbigny, 1852 † accepted as Crepidula cochleare Basterot, 1825 † (unaccepted > junior subjective synonym)
162. Species Crepidula virginica Conrad, 1870 † accepted as Crepidula fornicata (Linnaeus, 1758)
163. Species Crepidula walshi Reeve, 1859 accepted as Ergaea walshi (Reeve, 1859) (original combination)
164. Species Crepidula wilckensi Finlay, 1924 † accepted as Maoricrypta radiata (F. W. Hutton, 1873) † (junior subjective synonym)
165. Species Crepidula youngi (A. W. B. Powell, 1940) accepted as Maoricrypta youngi A. W. B. Powell, 1940 (superseded combination)
166. Species Crepidula adspersa Dunker, 1846 (uncertain > taxon inquirendum)
167. Species Crepidula barbudensis Nowell-Usticke, 1969 (uncertain > unassessed)
168. Species Crepidula coriocella R. A. Philippi, 1887 † (uncertain > unassessed)
169. Species Crepidula goreensis (Gmelin, 1791) (uncertain > nomen dubium)
170. Species Crepidula gryphaea Locard, 1898 (uncertain > taxon inquirendum)
171. Species Crepidula haliotoidea Fischer von Waldheim, 1807 (uncertain > taxon inquirendum)
172. Species Crepidula hepatica Deshayes, 1830 (uncertain > nomen dubium)
173. Species Crepidula incurvata Broderip & G. B. Sowerby I, 1829 (uncertain > taxon inquirendum)
174. Species Crepidula lentiginosa G. B. Sowerby II, 1883 (uncertain > taxon inquirendum, use in recent liteature currently undocumented)
175. Species Crepidula mytilina R. A. Philippi, 1887 † (uncertain > unassessed)
176. Species Crepidula riisei Dunker, 1852 (uncertain > nomen dubium)
177. Species Crepidula rugosa Anton, 1838 (uncertain > taxon inquirendum)
178. Species Crepidula sitchana Middendorff, 1849 (uncertain > taxon inquirendum)
179. Species Crepidula squamosa Menke, 1828 (uncertain > unassessed)
180. Species Crepidula subspirata Blainville, 1824 (uncertain > nomen dubium)

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