1. Species Ischnochiton (Ischnochiton) crassus Kaas, 1985 accepted as Connexochiton crassus (Kaas, 1985) (unaccepted > superseded combination)
2. Species Ischnochiton (Ischnochiton) delogoaensis Ashby, 1931 accepted as Ischnochiton yerburyi (E. A. Smith, 1891)
3. Species Ischnochiton (Ischnochiton) granulifer Thiele, 1909 accepted as Subterenochiton granulifer (Thiele, 1909) (superseded combination)
4. Species Ischnochiton (Ischnochiton) hakodadensis P. P. Carpenter, 1893 accepted as Ischnochiton hakodadensis P. P. Carpenter, 1893
5. Species Ischnochiton (Ischnochiton) kilburni Kaas, 1979 accepted as Ischnochiton sansibarensis Thiele, 1910
6. Species Ischnochiton (Ischnochiton) acomphus Hull & Risbec, 1930 represented as Ischnochiton acomphus Hull & Risbec, 1930
7. Species Ischnochiton (Ischnochiton) aidae Righi, 1973 represented as Ischnochiton aidae Righi, 1973
8. Species Ischnochiton (Ischnochiton) alascensis Thiele, 1910 represented as Ischnochiton alascensis Thiele, 1909
9. Species Ischnochiton (Ischnochiton) albinus Thiele, 1911 represented as Ischnochiton albinus Thiele, 1911 accepted as Subterenochiton albinus (Thiele, 1911)
10. Species Ischnochiton (Ischnochiton) bergoti (Vélain, 1877) represented as Ischnochiton bergoti (Vélain, 1877)
11. Species Ischnochiton (Ischnochiton) bigranosus Kaas & Van Belle, 1990 represented as Ischnochiton bigranosus Kaas & Van Belle, 1990
12. Species Ischnochiton (Ischnochiton) boninensis Bergenhayn, 1933 represented as Ischnochiton boninensis Bergenhayn, 1933
13. Species Ischnochiton (Ischnochiton) bouryi Dupuis, 1917 represented as Ischnochiton bouryi Dupuis, 1917
14. Species Ischnochiton (Ischnochiton) carinulatus (Reeve, 1847) represented as Ischnochiton carinulatus (Reeve, 1847)
15. Species Ischnochiton (Ischnochiton) carolianus A. J. Ferreira, 1984 represented as Ischnochiton carolianus A. J. Ferreira, 1984
16. Species Ischnochiton (Ischnochiton) cessaci (Rochebrune, 1881) represented as Ischnochiton cessaci (Rochebrune, 1881)
17. Species Ischnochiton (Ischnochiton) chaceorum Kaas & Van Belle, 1990 represented as Ischnochiton chaceorum Kaas & Van Belle, 1990
18. Species Ischnochiton (Ischnochiton) circumvallatus (Reeve, 1847) represented as Ischnochiton circumvallatus (Reeve, 1847)
19. Species Ischnochiton (Ischnochiton) colubrifer (Reeve, 1848) represented as Ischnochiton colubrifer (Reeve, 1848)
20. Species Ischnochiton (Ischnochiton) comptus (A. Gould, 1859) represented as Ischnochiton comptus (A. Gould, 1859)
21. Species Ischnochiton (Ischnochiton) contractus (Reeve, 1847) represented as Ischnochiton contractus (Reeve, 1847)
22. Species Ischnochiton (Ischnochiton) crebristriatus Cochran, 1988 represented as Ischnochiton crebristriatus Cochran, 1988
23. Species Ischnochiton (Ischnochiton) dilatosculptus Kaas, 1982 represented as Ischnochiton dilatosculptus Kaas, 1982
24. Species Ischnochiton (Ischnochiton) dispar (G. B. Sowerby I, 1832) represented as Ischnochiton dispar (G. B. Sowerby I, 1832)
25. Species Ischnochiton (Ischnochiton) distigmatus Hull, 1924 represented as Ischnochiton distigmatus Hull, 1924
26. Species Ischnochiton (Ischnochiton) elizabethensis Pilsbry, 1894 represented as Ischnochiton elizabethensis Pilsbry, 1894
27. Species Ischnochiton (Ischnochiton) elongatus (Blainville, 1825) represented as Ischnochiton elongatus (Blainville, 1825)
28. Species Ischnochiton (Ischnochiton) erythronotus (C. B. Adams, 1845) represented as Ischnochiton erythronotus (C. B. Adams, 1845)
29. Species Ischnochiton (Ischnochiton) examinandus Hull, 1923 represented as Ischnochiton examinandus Hull, 1923
30. Species Ischnochiton (Ischnochiton) falcatus Hull, 1912 represented as Ischnochiton falcatus Hull, 1912
31. Species Ischnochiton (Ischnochiton) feliduensis E. A. Smith, 1903 represented as Ischnochiton feliduensis E. A. Smith, 1903
32. Species Ischnochiton (Ischnochiton) fraternus Thiele, 1910 represented as Ischnochiton fraternus Thiele, 1910
33. Species Ischnochiton (Ischnochiton) gallensis Knorre, 1925 represented as Ischnochiton gallensis Knorre, 1925
34. Species Ischnochiton (Ischnochiton) goreensis Thiele, 1910 represented as Ischnochiton goreensis Thiele, 1910
35. Species Ischnochiton (Ischnochiton) goudi Kaas, 1996 represented as Ischnochiton goudi Kaas, 1996
36. Species Ischnochiton (Ischnochiton) guatemalensis Thiele, 1910 represented as Ischnochiton guatemalensis Thiele, 1910
37. Species Ischnochiton (Ischnochiton) hartmeyeri Thiele, 1910 represented as Ischnochiton hartmeyeri Thiele, 1910
38. Species Ischnochiton (Ischnochiton) indianus Leloup, 1981 represented as Ischnochiton indianus Leloup, 1981
39. Species Ischnochiton (Ischnochiton) indifferens Thiele, 1911 represented as Ischnochiton indifferens Thiele, 1911
40. Species Ischnochiton (Ischnochiton) intermedius Hedley & Hull, 1912 represented as Ischnochiton intermedius Hedley & Hull, 1912
41. Species Ischnochiton (Ischnochiton) kaasi A. J. Ferreira, 1987 represented as Ischnochiton kaasi A. J. Ferreira, 1987
42. Species Ischnochiton (Ischnochiton) keili Plate, 1899 represented as Ischnochiton keili Plate, 1899
43. Species Ischnochiton (Ischnochiton) lineolatus (Blainville, 1825) represented as Ischnochiton lineolatus (Blainville, 1825)
44. Species Ischnochiton (Ischnochiton) lopesi Kaas, 1974 represented as Ischnochiton lopesi Kaas, 1974
45. Species Ischnochiton (Ischnochiton) luteoroseus Suter, 1907 represented as Ischnochiton luteoroseus Suter, 1907 accepted as Subterenochiton luteoroseus (Suter, 1907)
46. Species Ischnochiton (Ischnochiton) luticolens Hull, 1923 represented as Ischnochiton luticolens Hull, 1923
47. Species Ischnochiton (Ischnochiton) macleani A. J. Ferreira, 1978 represented as Ischnochiton macleani A. J. Ferreira, 1978
48. Species Ischnochiton (Ischnochiton) maorianus Iredale, 1914 represented as Ischnochiton maorianus Iredale, 1914
49. Species Ischnochiton (Ischnochiton) mawlei Iredale & May, 1916 represented as Ischnochiton mawlei Iredale & May, 1916
50. Species Ischnochiton (Ischnochiton) mayi Pilsbry, 1895 represented as Ischnochiton mayi Pilsbry, 1895
51. Species Ischnochiton (Ischnochiton) mitsukurii Pilsbry, 1898 represented as Ischnochiton mitsukurii Pilsbry, 1898
52. Species Ischnochiton (Ischnochiton) muscarius (Reeve, 1847) represented as Ischnochiton muscarius (Reeve, 1847)
53. Species Ischnochiton (Ischnochiton) newcombi P. P. Carpenter, 1892 represented as Ischnochiton newcombi P. P. Carpenter, 1892
54. Species Ischnochiton (Ischnochiton) nicklesi Kaas & van Belle, 1990 represented as Ischnochiton nicklesi Kaas & van Belle, 1990
55. Species Ischnochiton (Ischnochiton) niveus A. J. Ferreira, 1987 represented as Ischnochiton niveus A. J. Ferreira, 1987
56. Species Ischnochiton (Ischnochiton) obtusus P. P. Carpenter, 1893 represented as Ischnochiton obtusus P. P. Carpenter, 1893
57. Species Ischnochiton (Ischnochiton) oniscus (Krauss, 1848) represented as Ischnochiton oniscus (Krauss, 1848)
58. Species Ischnochiton (Ischnochiton) paessleri Thiele, 1910 represented as Ischnochiton paessleri Thiele, 1910
59. Species Ischnochiton (Ischnochiton) papillosus (C. B. Adams, 1845) represented as Ischnochiton papillosus (C. B. Adams, 1845)
60. Species Ischnochiton (Ischnochiton) paululus Is. Taki, 1938 represented as Ischnochiton paululus Is. Taki, 1938
61. Species Ischnochiton (Ischnochiton) perornatus P. P. Carpenter, 1892 represented as Ischnochiton perornatus P. P. Carpenter, 1892
62. Species Ischnochiton (Ischnochiton) pilsbryi Bednall, 1897 represented as Ischnochiton pilsbryi Bednall, 1897
63. Species Ischnochiton (Ischnochiton) pseudovirgatus Kaas, 1972 represented as Ischnochiton pseudovirgatus Kaas, 1972
64. Species Ischnochiton (Ischnochiton) ptychius Pilsbry, 1894 represented as Ischnochiton ptychius Pilsbry, 1894
65. Species Ischnochiton (Ischnochiton) punctulatissimus (G. B. Sowerby I, 1832) represented as Ischnochiton punctulatissimus (G. B. Sowerby I, 1832)
66. Species Ischnochiton (Ischnochiton) purus Sykes, 1896 represented as Ischnochiton purus Sykes, 1896
67. Species Ischnochiton (Ischnochiton) pusillus (G. B. Sowerby I, 1832) represented as Ischnochiton pusillus (G. B. Sowerby I, 1832)
68. Species Ischnochiton (Ischnochiton) rhodolithophilus R. N. Clark, 2000 represented as Ischnochiton rhodolithophilus R. N. Clark, 2000
69. Species Ischnochiton (Ischnochiton) rissoi (Payraudeau, 1826) represented as Ischnochiton rissoi (Payraudeau, 1826)
70. Species Ischnochiton (Ischnochiton) sansibarensis Thiele, 1910 represented as Ischnochiton sansibarensis Thiele, 1910
71. Species Ischnochiton (Ischnochiton) sererorum (Rochebrune, 1881) represented as Ischnochiton sererorum (Rochebrune, 1881)
72. Species Ischnochiton (Ischnochiton) sirenkoi Dell'Angelo, Prelle, Sosso & Bonfitto, 2011 represented as Ischnochiton sirenkoi Dell'Angelo, Prelle, Sosso & Bonfitto, 2011
73. Species Ischnochiton (Ischnochiton) stramineus (G. B. Sowerby I, 1832) represented as Ischnochiton stramineus (G. B. Sowerby I, 1832)
74. Species Ischnochiton (Ischnochiton) striolatus (J. E. Gray, 1828) represented as Ischnochiton striolatus (J. E. Gray, 1828)
75. Species Ischnochiton (Ischnochiton) tenuisculptus (P. P. Carpenter, 1863) represented as Ischnochiton tenuisculptus (P. P. Carpenter, 1863)
76. Species Ischnochiton (Ischnochiton) textilis (J. E. Gray, 1828) represented as Ischnochiton textilis (J. E. Gray, 1828)
77. Species Ischnochiton (Ischnochiton) tindalei Ashby, 1924 represented as Ischnochiton tindalei Ashby, 1924
78. Species Ischnochiton (Ischnochiton) tomhalei R. N. Clark, 2000 represented as Ischnochiton tomhalei R. N. Clark, 2000
79. Species Ischnochiton (Ischnochiton) torri Iredale & May, 1916 represented as Ischnochiton torri Iredale & May, 1916
80. Species Ischnochiton (Ischnochiton) tridentatus Pilsbry, 1893 represented as Ischnochiton tridentatus Pilsbry, 1893
81. Species Ischnochiton (Ischnochiton) usticensis Dell'Angelo & Castriota, 1999 represented as Ischnochiton usticensis Dell'Angelo & Castriota, 1999
82. Species Ischnochiton (Ischnochiton) variegatus (H. Adams & Angas, 1864) represented as Ischnochiton variegatus (H. Adams & Angas, 1864)
83. Species Ischnochiton (Ischnochiton) verconis Torr, 1911 represented as Ischnochiton verconis Torr, 1911
84. Species Ischnochiton (Ischnochiton) versicolor (G. B. Sowerby II, 1839) represented as Ischnochiton versicolor (G. B. Sowerby II, 1840)
85. Species Ischnochiton (Ischnochiton) victoriae A. J. Ferreira, 1987 represented as Ischnochiton victoria A. J. Ferreira, 1987
86. Species Ischnochiton (Ischnochiton) virgatus (Reeve, 1848) represented as Ischnochiton virgatus (Reeve, 1848)
87. Species Ischnochiton (Ischnochiton) viridulus (A. Gould, 1846) represented as Ischnochiton viridulus (A. Gould, 1846)
88. Species Ischnochiton (Ischnochiton) weedingi Milne, 1958 represented as Ischnochiton weedingi Milne, 1958
89. Species Ischnochiton (Ischnochiton) wilsoni Sykes, 1896 represented as Ischnochiton wilsoni Sykes, 1896
90. Species Ischnochiton (Ischnochiton) winckworthi Leloup, 1936 represented as Ischnochiton winckworthi Leloup, 1936
91. Species Ischnochiton (Ischnochiton) yemenensis Van Belle & Wranik, 1991 represented as Ischnochiton yemenensis Van Belle & Wranik, 1991
92. Species Ischnochiton (Ischnochiton) yerburyi (E. A. Smith, 1891) represented as Ischnochiton yerburyi (E. A. Smith, 1891)

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