1. Species Cylichna aethiopica Thiele, 1925
2. Species Cylichna africana Bartsch, 1915
3. Species Cylichna alba (T. Brown, 1827)
4. Species Cylichna andamanica E. A. Smith, 1904
5. Species Cylichna assimilis A. Adams, 1862
6. Species Cylichna atahualpa (Dall, 1908)
7. Species Cylichna atlantica E. A. Smith, 1890
8. Species Cylichna attonsa P. P. Carpenter, 1865
9. Species Cylichna auberii (A. d'Orbigny, 1841)
10. Species Cylichna biplicata (A. Adams, 1850)
11. Species Cylichna bistriata (Tomlin, 1920)
12. Species Cylichna bulloidea Dell, 1956
13. Species Cylichna candidula A. Adams, 1862
14. Species Cylichna chevreuxi Dautzenberg, 1889
15. Species Cylichna collyra Melvill, 1906
16. Species Cylichna consobrinoides Kuroda & Habe, 1952
17. Species Cylichna corticata (Møller, 1842)
18. Species Cylichna cumberlandiana (Strebel, 1908)
19. Species Cylichna cylindracea (Pennant, 1777)
20. Species Cylichna dalli A. E. Verrill, 1882
21. Species Cylichna diegensis (Dall, 1919)
22. Species Cylichna discus R. B. Watson, 1883
23. Species Cylichna doliaria Hedley, 1907
24. Species Cylichna dulcis Thiele, 1925
25. Species Cylichna eburnea A. E. Verrill, 1885
26. Species Cylichna euthlasta Melvill, 1918
27. Species Cylichna fantasma (F. Baker & G. D. Hanna, 1927)
28. Species Cylichna faoensis Melvill & Standen, 1901
29. Species Cylichna gelida (E. A. Smith, 1907)
30. Species Cylichna georgiana (Strebel, 1908)
31. Species Cylichna gouldii (Couthouy, 1839)
32. Species Cylichna granosa (Brazier, 1877)
33. Species Cylichna granulum (R. A. Philippi, 1851)
34. Species Cylichna grovesi Á. Valdés, 2008
35. Species Cylichna inca (Dall, 1908)
36. Species Cylichna inedita A. Adams, 1862
37. Species Cylichna involuta (A. Adams, 1850)
38. Species Cylichna krebsii Mörch, 1875
39. Species Cylichna latiuscula A. Adams, 1862
40. Species Cylichna lemchei Bouchet & Warén, 1979
41. Species Cylichna lepidula A. Adams, 1862
42. Species Cylichna luticola (C. B. Adams, 1852)
43. Species Cylichna modesta Thiele, 1925
44. Species Cylichna noronyensis R. B. Watson, 1883
45. Species Cylichna ordinaria E. A. Smith, 1891
46. Species Cylichna orycta (R. B. Watson, 1883)
47. Species Cylichna parallela A. Adams, 1862
48. Species Cylichna paupercula R. B. Watson, 1883
49. Species Cylichna petiti Dautzenberg, 1923
50. Species Cylichna piettei Dautzenberg & H. Fischer, 1896
51. Species Cylichna pizarro (Dall, 1908)
52. Species Cylichna propecylindracea (De Gregorio, 1889)
53. Species Cylichna protracta A. Gould, 1859
54. Species Cylichna proxima A. Adams, 1862
55. Species Cylichna pumila A. Adams, 1862
56. Species Cylichna remissa E. A. Smith, 1890
57. Species Cylichna reticulata R. B. Watson, 1883
58. Species Cylichna rimata A. Adams, 1862
59. Species Cylichna sibogae Schepman, 1913
60. Species Cylichna subreticulata R. B. Watson, 1883
61. Species Cylichna tahitensis R. B. Watson, 1883
62. Species Cylichna tanyumphalos Á. Valdés, 2008
63. Species Cylichna tenuissima Thiele, 1925
64. Species Cylichna thetidis Hedley, 1903
65. Species Cylichna tubulosa A. Gould, 1859
66. Species Cylichna verrillii Dall, 1889
67. Species Cylichna villersii (Audouin, 1826)
68. Species Cylichna vortex (Dall, 1881)
69. Species Cylichna zealandica T. W. Kirk, 1880
70. Subgenus Cylichna (Cylichnella) Gabb, 1873 accepted as Cylichnella Gabb, 1873
    1. Species Cylichna (Cylichnella) tabogaensis A. M. Strong & Hertlein, 1939 accepted as Cylichnella tabogaensis (A. M. Strong & Hertlein, 1939)
71. Subgenus Cylichna (Cylichnoides) Minichev, 1977 accepted as Cylichnoides Minichev, 1977 (original rank)
72. Subgenus Cylichna (Mnestia) H. Adams & A. Adams, 1854 accepted as Mnestia H. Adams & A. Adams, 1854 (original rank)
    1. Species Cylichna (Mnestia) alboguttata E. A. Smith, 1872 accepted as Mnestia alboguttata (E. A. Smith, 1872) (basionym)
    2. Species Cylichna (Mnestia) punctosulcata E. A. Smith, 1872 (uncertain > taxon inquirendum)
73. Subgenus Cylichna (Pyrunculus) Pilsbry, 1895 accepted as Pyrunculus Pilsbry, 1895
    1. Species Cylichna (Pyrunculus) floridensis Dall, 1927 accepted as Pyrunculus floridensis (Dall, 1927)
    2. Species Cylichna (Pyrunculus) medius Dall, 1927 accepted as Pyrunculus medius (Dall, 1927)
    3. Species Cylichna (Pyrunculus) rushi Dall, 1927 accepted as Pyrunculus rushi (Dall, 1927)
74. Subgenus Cylichna (Sao) H. Adams & A. Adams, 1854 accepted as Pyrunculus Pilsbry, 1895
    1. Species Cylichna (Sao) pellyi E. A. Smith, 1872 (uncertain > taxon inquirendum)
75. Subgenus Cylichna (Volvula) A. Adams, 1850 accepted as Volvulella R. B. Newton, 1891
    1. Species Cylichna (Volvula) paupercula R. B. Watson, 1883 accepted as Volvulella paupercula (R. B. Watson, 1883) (unaccepted > superseded combination)
    2. Species Cylichna (Volvula) sulcata R. B. Watson, 1883 accepted as Volvulella sulcata (R. B. Watson, 1883) (unaccepted > superseded combination)
76. Species Cylichna affinis Thiele, 1925 accepted as Cylichna tubulosa A. Gould, 1859
77. Species Cylichna algoensis Thiele, 1925 accepted as Cylichna tubulosa A. Gould, 1859
78. Species Cylichna arachis (Quoy & Gaimard, 1833) accepted as Adamnestia arachis (Quoy & Gaimard, 1833) accepted as Mnestia arachis (Quoy & Gaimard, 1833)
79. Species Cylichna arthuri Dautzenberg, 1929 accepted as Cylichna biplicata (A. Adams, 1850)
80. Species Cylichna asamusiensis Nomura, 1939 accepted as Cylichnatys angusta (A. Gould, 1859) (unaccepted > junior subjective synonym)
81. Species Cylichna atkinsoni Tenison Woods, 1876 accepted as Retusa atkinsoni (Tenison Woods, 1876) (original combination)
82. Species Cylichna atyoides Thiele, 1925 accepted as Sphaerocylichna atyoides (Thiele, 1925)
83. Species Cylichna bidentata (A. Orbigny, 1841) accepted as Cylichnella bidentata (A. d'Orbigny, 1841) (unaccepted > superseded combination)
84. Species Cylichna bizona (A. Adams, 1850) accepted as Ventomnestia girardi (Audouin, 1826) accepted as Mnestia girardi (Audouin, 1826)
85. Species Cylichna bushirensis Melvill & Standen, 1901 accepted as Scaphander bushirensis (Melvill & Standen, 1901) (original combination)
86. Species Cylichna caelata K. J. Bush, 1885 accepted as Pyrunculus caelatus (K. J. Bush, 1885) (unaccepted > superseded combination)
87. Species Cylichna candidula Locard, 1891 accepted as Retusa candidula (Locard, 1891) (Invalid: junior primary homonym of Cylichna candidula A. Adams, 1862)
88. Species Cylichna concinna E. A. Smith, 1875 accepted as Eocylichna musashiensis (Tokunaga, 1906) (invalid: junior homonym of Cylichna concinna A. Adams, 1850)
89. Species Cylichna consobrina A. Adams, 1862 accepted as Cylichna consobrinoides Kuroda & Habe, 1952 (invalid: junior homonym of Cylichna consobrina Gould, 1859)
90. Species Cylichna consobrina A. Gould, 1859 accepted as Cylichna alba (T. Brown, 1827) (junior subjective synonym)
91. Species Cylichna crispula R. B. Watson, 1883 accepted as Retusa crispula (R. B. Watson, 1883) (unaccepted > superseded combination)
92. Species Cylichna crossei Bucquoy, Dautzenberg & Dollfus, 1886 accepted as Retusa crossei (Bucquoy, Dautzenberg & Dollfus, 1886) (original combination)
93. Species Cylichna cuneata Tiberi, 1868 accepted as Pyrunculus hoernesi (Weinkauff, 1866) (synonym)
94. Species Cylichna cylindrica (Bruguière, 1792) accepted as Cylichna cylindracea (Pennant, 1777) (synonym)
95. Species Cylichna densistriata (Leche, 1878) accepted as Cylichnoides densistriatus (Leche, 1878)
96. Species Cylichna elongata Locard, 1886 accepted as Cylichna cylindracea (Pennant, 1777) (synonym)
97. Species Cylichna fragilis Jeffreys, 1856 accepted as Ascobulla fragilis (Jeffreys, 1856)
98. Species Cylichna girardi (Audouin, 1826) accepted as Ventomnestia girardi (Audouin, 1826) accepted as Mnestia girardi (Audouin, 1826)
99. Species Cylichna grimaldii Dautzenberg, 1891 accepted as Haminella maltzani (Thiele, 1925) (uncertain senior synonym)
100. Species Cylichna hoernesii (Weinkauff, 1866) accepted as Pyrunculus hoernesi (Weinkauff, 1866)
101. Species Cylichna incisula Yokoyama, 1928 accepted as Liloa porcellana (A. Gould, 1859) (unaccepted > junior subjective synonym)
102. Species Cylichna involuta G. Nevill & H. Nevill, 1871 accepted as Acteocina involuta (G. Nevill & H. Nevill, 1871) (original combination)
103. Species Cylichna japonica A. Adams, 1862 accepted as Mnestia japonica (A. Adams, 1862) (original combination)
104. Species Cylichna javanica Schepman, 1913 accepted as Cylichna biplicata (A. Adams, 1850) (unaccepted > junior subjective synonym)
105. Species Cylichna jeffreysi (Weinkauff, 1866) accepted as Atys jeffreysi (Weinkauff, 1866) accepted as Roxaniella jeffreysi (Weinkauff, 1866) (unaccepted > superseded combination)
106. Species Cylichna kesennumaensis Nomura, 1939 accepted as Cylichnatys angusta (A. Gould, 1859) (unaccepted > junior subjective synonym)
107. Species Cylichna labiata R. B. Watson, 1883 accepted as Osorattis dubiosa (Brazier, 1877) (unaccepted > junior subjective synonym)
108. Species Cylichna laevisculpta Granata Grillo, 1877 accepted as Retusa laevisculpta (Granata Grillo, 1877) (original combination)
109. Species Cylichna latiscula accepted as Cylichna latiuscula A. Adams, 1862 (unaccepted > misspelling - incorrect subsequent spelling)
110. Species Cylichna leptoeneilema Brusina, 1866 accepted as Retusa leptoeneilema (Brusina, 1866)
111. Species Cylichna linearis Jeffreys, 1867 accepted as Cylichna cylindracea (Pennant, 1777)
112. Species Cylichna magna Lemche, 1941 accepted as Pseudocylichna magna (Lemche, 1941) (original combination)
113. Species Cylichna mecyntea Melvill, 1912 accepted as Volvulella mecyntea (Melvill, 1912) (unaccepted > superseded combination)
114. Species Cylichna mongei [sic] accepted as Cylichna mongii (Audouin, 1826) accepted as Liloa mongii (Audouin, 1826) (misspelling)
115. Species Cylichna mongii (Audouin, 1826) accepted as Liloa mongii (Audouin, 1826)
116. Species Cylichna musashiensis Yokoyama, 1920 accepted as Adamnestia japonica (A. Adams, 1862) accepted as Mnestia japonica (A. Adams, 1862) (invalid: junior homonym of Cylichna musashiensis Tokunaga, 1906)
117. Species Cylichna musashiensis Tokunaga, 1906 accepted as Eocylichna musashiensis (Tokunaga, 1906) (unaccepted > superseded combination)
118. Species Cylichna nipponensis Nomura & Hatai, 1940 accepted as Liloa nipponensis (Nomura & Hatai, 1940)
119. Species Cylichna nitidula Lovén, 1846 accepted as Cylichnina nitidula (Lovén, 1846) accepted as Retusa nitidula (Lovén, 1846) (original combination)
120. Species Cylichna nucleola (Reeve, 1855) accepted as Cylichna corticata (Møller, 1842)
121. Species Cylichna nucleolus (Reeve, 1855) accepted as Cylichna nucleola (Reeve, 1855) accepted as Cylichna corticata (Møller, 1842) (misspelling)
122. Species Cylichna obscura Sykes, 1904 accepted as Pyrunculus ovatus (Jeffreys, 1871) (dubious synonym)
123. Species Cylichna occulata [sic] accepted as Cylichna occulta (Mighels & C. B. Adams, 1842) accepted as Cylichnoides occultus (Mighels & C. B. Adams, 1842) (misspelling)
124. Species Cylichna occulta (Mighels & C. B. Adams, 1842) accepted as Cylichnoides occultus (Mighels & C. B. Adams, 1842)
125. Species Cylichna oryza (Totten, 1835) accepted as Cylichnella oryza (Totten, 1835)
126. Species Cylichna ovata Jeffreys, 1871 accepted as Pyrunculus ovatus (Jeffreys, 1871) (unaccepted > superseded combination)
127. Species Cylichna parvula Jeffreys, 1883 accepted as Retusa parvula (Jeffreys, 1883) (original combination)
128. Species Cylichna pertenuis E. A. Smith, 1875 accepted as Retusa succincta (A. Adams, 1862) (unaccepted > junior subjective synonym)
129. Species Cylichna planata P. P. Carpenter, 1864 accepted as Acteocina cerealis (A. Gould, 1853)
130. Species Cylichna producta (T. Brown, 1827) accepted as Cylichna cylindracea (Pennant, 1777) (synonym)
131. Species Cylichna propinqua M. Sars, 1858 accepted as Cylichna occulta (Mighels & C. B. Adams, 1842) accepted as Cylichnoides occultus (Mighels & C. B. Adams, 1842)
132. Species Cylichna propinqva M. Sars, 1858 accepted as Cylichna propinqua M. Sars, 1858 accepted as Cylichna occulta (Mighels & C. B. Adams, 1842) accepted as Cylichnoides occultus (Mighels & C. B. Adams, 1842) (original spelling)
133. Species Cylichna protumida Hedley, 1903 accepted as Retusa protumida (Hedley, 1903) (original combination)
134. Species Cylichna pygmaea (A. Adams, 1850) accepted as Retusa pygmaea (A. Adams, 1850)
135. Species Cylichna richardi Dautzenberg, 1889 accepted as Mamillocylichna richardi (Dautzenberg, 1889)
136. Species Cylichna scalpta (Reeve, 1855) accepted as Cylichnoides scalptus (Reeve, 1855)
137. Species Cylichna semisulcata Dunker, 1882 accepted as Liloa porcellana (A. Gould, 1859) (junior subjective synonym)
138. Species Cylichna simplex Murdoch & Suter, 1906 accepted as Relichna simplex (Murdoch & Suter, 1906) accepted as Relichna murdochi (Suter, 1913)
139. Species Cylichna spreta R. B. Watson, 1897 accepted as Pyrunculus spretus (R. B. Watson, 1897) (unaccepted > superseded combination)
140. Species Cylichna stephensae A. M. Strong & Hertlein, 1939 accepted as Aliculastrum exaratum (P. P. Carpenter, 1857)
141. Species Cylichna striata F. W. Hutton, 1873 accepted as Retusa striata (F. W. Hutton, 1873) (superseded combination)
142. Species Cylichna strigella Lovén, 1846 accepted as Cylichnina umbilicata (Montagu, 1803) accepted as Retusa umbilicata (Montagu, 1803) (synonym)
143. Species Cylichna strigella (A. Adams, 1850) accepted as Cylichna biplicata (A. Adams, 1850)
144. Species Cylichna sulcata (A. d'Orbigny, 1841) accepted as Retusa sulcata (A. d'Orbigny, 1841) (unaccepted > superseded combination)
145. Species Cylichna sulcata R. B. Watson, 1883 accepted as Retusa sulcata (R. B. Watson, 1883) (unaccepted > superseded combination)
146. Species Cylichna sumatrana Thiele, 1925 accepted as Relichna sumatrana (Thiele, 1925) (original combination)
147. Species Cylichna sundaica Thiele, 1925 accepted as Cylichna biplicata (A. Adams, 1850)
148. Species Cylichna tayamaensis Habe, 1955 accepted as Cylichna alba (T. Brown, 1827)
149. Species Cylichna toyamaensis Habe, 1955 accepted as Retusa toyamaensis (Habe, 1955)
150. Species Cylichna truncatella Locard, 1886 accepted as Retusa truncatula (Bruguière, 1792) (synonym)
151. Species Cylichna veleronis A. M. Strong & Hertlein, 1939 accepted as Aliculastrum exaratum (P. P. Carpenter, 1857)
152. Species Cylichna venustula A. Adams, 1862 accepted as Relichna venustula (A. Adams, 1862) (unaccepted > superseded combination)
153. Species Cylichna villica A. Gould, 1859 accepted as Mnestia villica (A. Gould, 1859) (superseded combination)
154. Species Cylichna yamakawai Yokoyama, 1928 accepted as Cylichnatys angusta (A. Gould, 1859) (unaccepted > junior subjective synonym)
155. Species Cylichna brevissima (A. Adams, 1850) (uncertain > taxon inquirendum)
156. Species Cylichna consanguinea E. A. Smith, 1872 (uncertain > taxon inquirendum)
157. Species Cylichna crenilabris Melvill & Standen, 1901 (uncertain > taxon inquirendum)
158. Species Cylichna ellipsoidea A. Gould, 1859 (uncertain > taxon inquirendum)
159. Species Cylichna erecta Hedley, 1899 (uncertain > taxon inquirendum)
160. Species Cylichna fijiensis E. A. Smith, 1872 (uncertain > taxon inquirendum)
161. Species Cylichna grandi (A. Adams) (uncertain > taxon inquirendum)
162. Species Cylichna insculpta (Totten, 1835) (uncertain > unassessed)
163. Species Cylichna jecoralis Melvill & Standen, 1903 (uncertain > unassessed)
164. Species Cylichna lacteocincta E. A. Smith, 1872 (uncertain > taxon inquirendum)
165. Species Cylichna lactuca G. Nevill & H. Nevill, 1871 (uncertain > taxon inquirendum)
166. Species Cylichna laeta A. Gould, 1859 (uncertain > taxon inquirendum)
167. Species Cylichna melampoides A. Gould, 1859 (uncertain > taxon inquirendum)
168. Species Cylichna minuta H. Adams, 1872 (uncertain > unassessed, use in recent literature not established by editor)
169. Species Cylichna minuta Brazier, 1877 (uncertain > taxon inquirendum, junior homonym)
170. Species Cylichna nitens E. A. Smith, 1872 (uncertain > taxon inquirendum)
171. Species Cylichna operosa A. Gould, 1859 (uncertain > taxon inquirendum)
172. Species Cylichna perpusilla E. A. Smith, 1872 (uncertain > taxon inquirendum)
173. Species Cylichna pithiscus Melvill, 1904 (uncertain > unassessed)
174. Species Cylichna propinqua E. A. Smith, 1872 (uncertain > taxon inquirendum, invalid: junior primary homonym of Cylichna propinqua M. Sars, 1858)
175. Species Cylichna pumilissima E. A. Smith, 1872 (uncertain > taxon inquirendum)
176. Species Cylichna regularis A. Gould, 1859 (uncertain > taxon inquirendum)
177. Species Cylichna similis Thiele, 1925 (uncertain > taxon inquirendum)
178. Species Cylichna tenuis Hedley, 1905 (uncertain > taxon inquirendum)

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