1. Species Atys angustatus E. A. Smith, 1872
2. Species Atys beberkiriana K. Martin, 1906 †
3. Species Atys bicolor Bozzetti, 2009
4. Species Atys biforatus Thiele, 1925
5. Species Atys caribaeus (A. d'Orbigny, 1841)
6. Species Atys chelidon Melvill, 1912
7. Species Atys cheverti Brazier, 1877
8. Species Atys costulosus Pease, 1869
9. Species Atys crassilabris Thiele, 1925
10. Species Atys densus Brazier, 1877
11. Species Atys duvergieri (Peyrot, 1932) †
12. Species Atys ehrenbergi (Issel, 1869)
13. Species Atys extumidus Pacaud, 2024 †
14. Species Atys guildingi G. B. Sowerby II, 1869
15. Species Atys hyalinus R. B. Watson, 1883
16. Species Atys kuhnsi Pilsbry, 1917
17. Species Atys liriope Hertlein & A. M. Strong, 1951
18. Species Atys maorinus Marwick, 1931 †
19. Species Atys naucum (Linnaeus, 1758)
20. Species Atys neglectus Preston, 1908
21. Species Atys nonscriptus (A. Adams, 1850)
22. Species Atys obscuratus Dall, 1896
23. Species Atys okinawa MacNeil, 1961 †
24. Species Atys riiseanus Mörch, 1875
25. Species Atys sandersoni Dall, 1881
26. Species Atys semistriatus Pease, 1860
    1. Subspecies Atys semistriatus fordinsulae Pilsbry, 1921 accepted as Atys semistriatus Pease, 1860 (junior synonym)
    2. Subspecies Atys semistriatus mua Pilsbry, 1921 accepted as Atys semistriatus Pease, 1860
27. Species Atys sharpi Vanatta, 1901
28. Species Atys submalleatus E. A. Smith, 1904
29. Species Atys virginalis Thiele, 1925
30. Subgenus Atys (Alicula) Ehrenberg, 1831 accepted as Aliculastrum Pilsbry, 1896
    1. Species Atys (Alicula) panaulax Cossmann, 1900 † accepted as Aliculastrum panaulax (Cossmann, 1900) †
    2. Species Atys (Alicula) secalina A. Adams, 1862 accepted as Aliculastrum secalinum (A. Adams, 1862) (unaccepted > superseded combination)
    3. Species Atys (Alicula) supracancellata Schepman, 1913 accepted as Alacuppa supracancellata (Schepman, 1913) (unaccepted > superseded combination)
    4. Species Atys (Alicula) translucens A. Adams, 1862 accepted as Liloa translucens (A. Adams, 1862)
    5. Species Atys (Alicula) volvulina A. Adams, 1862 accepted as Aliculastrum volvulina (A. Adams, 1862) (unaccepted > superseded combination)
    6. Species Atys (Alicula) isseli H. Adams, 1872 (uncertain, use in recent literature not established by editor)
31. Subgenus Atys (Aliculastrum) Pilsbry, 1896 accepted as Aliculastrum Pilsbry, 1896 (original rank)
    1. Species Atys (Aliculastrum) lacrimula Laws, 1939 † accepted as Weinkauffia lacrimula (Laws, 1939) † (superseded combination)
    2. Species Atys (Aliculastrum) liriope Hertlein & A. M. Strong, 1951 accepted as Atys liriope Hertlein & A. M. Strong, 1951
32. Subgenus Atys (Atys) Monfort, 1810 accepted as Atys Montfort, 1810
    1. Species Atys (Atys) amphorella A. Adams, 1862 accepted as Vellicolla amphorella (A. Adams, 1862) (basionym)
33. Subgenus Atys (Dinia) H. Adams & A. Adams, 1854 accepted as Diniatys Iredale, 1936 (Invalid: junior homonym of Dinia Walker, 1854 [Lepidoptera]; Diniatys is a replacement name)
    1. Species Atys (Dinia) compitorum (Pilsbry, 1921) accepted as Diniatys dentifer (A. Adams, 1850)
    2. Species Atys (Dinia) dentifera (A. Adams, 1850) accepted as Diniatys dentifer (A. Adams, 1850) (unaccepted > superseded combination)
    3. Species Atys (Dinia) truncatula Schepman, 1913 accepted as Diniatys truncatulus (Schepman, 1913) (unaccepted > superseded combination)
34. Subgenus Atys (Roxania) Leach, 1847 accepted as Roxania Leach, 1847
    1. Species Atys (Roxania) lithensis Sturany, 1903 accepted as Roxania lithensis (Sturany, 1903) (basionym)
    2. Species Atys (Roxania) punctulata A. Adams, 1862 accepted as Mimatys punctulatus (A. Adams, 1862) (unaccepted > superseded combination)
35. Subgenus Atys (Sao) H. Adams & A. Adams, 1854 accepted as Pyrunculus Pilsbry, 1895 (Invalid: junior komonym of Sao Bilberg, 1820 [Crustacea]; Pyrunculus is a replacement name)
    1. Species Atys (Sao) elliptica A. Adams, 1862 accepted as Pyrunculus ellipticus (A. Adams, 1862) (basionym)
    2. Species Atys (Sao) phiala A. Adams, 1862 accepted as Pyrunculus phialus (A. Adams, 1862) (basionym)
    3. Species Atys (Sao) folliculus A. Adams, 1862 (uncertain, use in recent literature not established by editor)
36. Subgenus Atys (Sphaeratys) F. Nordsieck, 1972 accepted as Oxygyrus W. H. Benson, 1835
    1. Species Atys (Sphaeratys) globulinus F. Nordsieck, 1972 accepted as Oxygyrus inflatus W. H. Benson, 1835
37. Species Atys alayoi Espinosa & Ortea, 2004 accepted as Colinatys alayoi (Espinosa & Ortea, 2004) (original combination)
38. Species Atys alicula A. Adams, 1854 (unaccepted > nomen nudum)
39. Species Atys amphorella A. Adams, 1862 accepted as Vellicolla amphorella (A. Adams, 1862) (original combination)
40. Species Atys bathymophila Dall, 1881 accepted as Sabatia bathymophila (Dall, 1881) (unaccepted > superseded combination)
41. Species Atys brocchii (Michelotti, 1847) † accepted as Cylichna brocchii (Michelotti, 1847) † (unaccepted > superseded combination)
42. Species Atys canariensis E. A. Smith, 1872 accepted as Weinkauffia turgidula (Forbes, 1844) (unaccepted > junior subjective synonym)
43. Species Atys casta P. P. Carpenter, 1864 accepted as Aliculastrum exaratum (P. P. Carpenter, 1857) (incorrect gender ending)
44. Species Atys castus P. P. Carpenter, 1864 accepted as Aliculastrum exaratum (P. P. Carpenter, 1857)
45. Species Atys chimera F. Baker & G. D. Hanna, 1927 accepted as Aliculastrum exaratum (P. P. Carpenter, 1857)
46. Species Atys cornuta Pilsbry, 1917 accepted as Limulatys debilis (Pease, 1860)
47. Species Atys costulosa Pease, 1869 accepted as Atys costulosus Pease, 1869 (incorrect gender of species epithet)
48. Species Atys curta (A. Adams, 1850) accepted as Liloa mongii (Audouin, 1826)
49. Species Atys cylindraeus [sic] accepted as Aliculastrum cylindricum (Helbling, 1779) (misspelling)
50. Species Atys cylindrella Nowell-Usticke, 1971 accepted as Atys riiseanus Mörch, 1875 (unaccepted > junior subjective synonym)
51. Species Atys cylindrica [sic] accepted as Aliculastrum cylindricum (Helbling, 1779) (incorrect gender ending)
52. Species Atys cylindricus (Helbling, 1779) accepted as Aliculastrum cylindricum (Helbling, 1779)
53. Species Atys cymbulus Montfort, 1810 accepted as Atys naucum (Linnaeus, 1758) (unnecessary substitute name for Bulla naucum Linnaus, 1758)
54. Species Atys darnleyensis Brazier, 1877 accepted as Atys hyalinus R. B. Watson, 1883 (possible senior synonym)
55. Species Atys debilis Pease, 1860 accepted as Aliculastrum debile (Pease, 1860) (original combination)
56. Species Atys densa Brazier, 1877 accepted as Atys densus Brazier, 1877 (incorrect gender of species epithet)
57. Species Atys dubiosa Brazier, 1877 accepted as Osorattis dubiosa (Brazier, 1877) (unaccepted > superseded combination)
58. Species Atys elongata (A. Adams, 1850) accepted as Aliculastrum cylindricum (Helbling, 1779)
59. Species Atys exaratus (P. P. Carpenter, 1857) accepted as Aliculastrum exaratum (P. P. Carpenter, 1857)
60. Species Atys extensa H. J. Finlay, 1927 accepted as Atys elongata (A. Adams, 1850) (replacement name for Bulla elongata A. Adams, 1850, not Phillips, 1835)
61. Species Atys ferruginosa (A. Adams, 1850) accepted as Atys naucum (Linnaeus, 1758)
62. Species Atys flavovirens Melvill & Standen, 1903 accepted as Vellicolla flavovirens (Melvill & Standen, 1903) (unaccepted > superseded combination)
63. Species Atys freyi Brancsik, 1891 accepted as Atys naucum (Linnaeus, 1758)
64. Species Atys globulinus F. Nordsieck, 1972 accepted as Oxygyrus inflatus W. H. Benson, 1835 (synonym)
65. Species Atys hyalina R. B. Watson, 1883 accepted as Atys hyalinus R. B. Watson, 1883 (wrong grammatical agreement in original publication)
66. Species Atys improcerus Marwick, 1931 † accepted as Pyrunculus improcerus (Marwick, 1931) † (superseded combination)
67. Species Atys jeffreysi (Weinkauff, 1866) accepted as Roxaniella jeffreysi (Weinkauff, 1866)
68. Species Atys lacrimula Laws, 1939 † accepted as Limulatys lacrimula (Laws, 1939) † (superseded combination)
69. Species Atys lineata Nowell-Usticke, 1959 accepted as Atys macandrewii E. A. Smith, 1872 (synonym)
70. Species Atys lithensis Sturany, 1903 accepted as Roxania lithensis (Sturany, 1903) (original combination)
71. Species Atys macandrewii E. A. Smith, 1872 accepted as Weinkauffia macandrewii (E. A. Smith, 1872)
72. Species Atys martensi Kobelt, 1895 accepted as Aliculastrum cylindricum (Helbling, 1779) (junior synonym)
73. Species Atys multistriata Schepman, 1913 accepted as Roxaniella multistriata (Schepman, 1913) (wrong grammatical agreement of species epithet)
74. Species Atys multistriatus Schepman, 1913 accepted as Roxaniella multistriata (Schepman, 1913) (original combination)
75. Species Atys muscaria A. Gould, 1859 accepted as Vellicolla muscaria (A. Gould, 1859) (superseded combination)
76. Species Atys neglecta Preston, 1908 accepted as Atys neglectus Preston, 1908 (wrong grammatical agreement in original publication)
77. Species Atys nonscripta (A. Adams, 1850) accepted as Atys nonscriptus (A. Adams, 1850) (unaccepted > incorrect grammatical agreement of specific epithet)
78. Species Atys palmarum Hedley, 1912 accepted as Micratys ovum Habe, 1952 (doubtful synonym)
79. Species Atys phiala A. Adams, 1862 accepted as Pyrunculus phialus (A. Adams, 1862) (original combination)
80. Species Atys pittmani Too, Carlson, Hoff & Malaquias, 2014 accepted as Roxaniella pittmani (Too, Carlson, Hoff & Malaquias, 2014) (original combination)
81. Species Atys pliocrassa (Sacco, 1897) † accepted as Cylichna pliocrassa (Sacco, 1897) † (unaccepted > superseded combination)
82. Species Atys porcellana A. Gould, 1859 accepted as Liloa porcellana (A. Gould, 1859) (superseded combination)
83. Species Atys pransa Hedley, 1904 accepted as Spissitydeus pransa (Hedley, 1904) (superseded combination)
84. Species Atys protocylindrica Vredenburg, 1925 † accepted as Aliculastrum protocylindricum (Vredenburg, 1925) †
85. Species Atys pulchra Brazier, 1877 accepted as Mnestia pulchra (Brazier, 1877) (original combination)
86. Species Atys scrobiculata A. Adams, 1862 accepted as Limulatys scrobiculatus (A. Adams, 1862) (unaccepted > superseded combination)
87. Species Atys semistriata Pease, 1860 accepted as Atys semistriatus Pease, 1860 (unaccepted > incorrect grammatical agreement of specific epithet)
88. Species Atys submalleata E. A. Smith, 1904 accepted as Atys submalleatus E. A. Smith, 1904 (incorrect gender of species epithet)
89. Species Atys succisa (Ehrenberg, 1831) accepted as Bulla succisa Ehrenberg, 1831
90. Species Atys turgidula (Forbes, 1844) accepted as Weinkauffia turgidula (Forbes, 1844) (unaccepted > superseded combination)
91. Species Atys turgidula (F. Sandberger, 1859) † accepted as Atys extumidus Pacaud, 2024 † (unaccepted > junior homonym)
92. Species Atys ukulele Too, Carlson, Hoff & Malaquias, 2014 accepted as Weinkauffia ukulele (Too, Carlson, Hoff & Malaquias, 2014) (original combination)
93. Species Atys volvulina A. Adams, 1862 accepted as Aliculastrum volvulina (A. Adams, 1862) (unaccepted > superseded combination)
94. Species Atys amygdala G. B. Sowerby II, 1869 (uncertain > taxon inquirendum)
95. Species Atys attenuata G. B. Sowerby II, 1869 (uncertain > taxon inquirendum, use in recent liteature currently undocumented)
96. Species Atys blainvillianus (Récluz, 1843) (uncertain > nomen dubium)
97. Species Atys cinctorii Pilsbry & C. W. Johnson, 1917 † (uncertain > unassessed)
98. Species Atys convexa Preston, 1908 (uncertain > taxon inquirendum)
99. Species Atys dactylus Hedley, 1899 (uncertain > taxon inquirendum)
100. Species Atys gracilis Dall, 1896 † (uncertain > unassessed)
101. Species Atys kekele Pilsbry, 1921 † (uncertain > taxon inquirendum)
102. Species Atys miranda E. A. Smith, 1872 (uncertain > taxon inquirendum)
103. Species Atys obscurata Dall, 1896 † (uncertain > unassessed)
104. Species Atys oedemata Dall, 1896 † (uncertain > unassessed)
105. Species Atys pacei Preston, 1908 (uncertain > taxon inquirendum)
106. Species Atys salina Dall, 1896 † (uncertain > unassessed)
107. Species Atys sulculorum Pilsbry & C. W. Johnson, 1917 † (uncertain > unassessed)
108. Species Atys vixumbilicata Preston, 1908 (uncertain > taxon inquirendum)

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