1. Species Montacuta cycloides (Cossmann, 1887) †
2. Species Montacuta cylindracea E. A. Smith, 1885
3. Species Montacuta divaricata A. A. Gould, 1861
4. Species Montacuta echinocardiophila Habe, 1964
5. Species Montacuta goudi van Aartsen, 1997
6. Species Montacuta jervisensis (Laseron, 1956)
7. Species Montacuta limpida Dall, 1899
8. Species Montacuta minuscula Dall, 1899
9. Species Montacuta neozelanica (Dell, 1956)
10. Species Montacuta nimrodiana (Hedley, 1911)
11. Species Montacuta nitens Gatliff & Gabriel, 1911
12. Species Montacuta obliquans Melvill, 1907
13. Species Montacuta pusilla (Thiele, 1930)
14. Species Montacuta schafferi Kautsky, 1940 †
15. Species Montacuta semiradiata Tate, 1889
16. Species Montacuta sericea Tate, 1887 †
17. Species Montacuta spitzbergensis Knipowitsch, 1901
18. Species Montacuta substriata (Montagu, 1808)
19. Species Montacuta tehuelcha (Zelaya & Ituarte, 2012)
20. Species Montacuta tenuissima Cossmann, 1887 †
21. Subgenus Montacuta (Aligena) H. C. Lea, 1843 accepted as Aligena H. C. Lea, 1843 (unaccepted > superseded rank)
    1. Species Montacuta (Aligena) antwerpiensis Glibert, 1943 † accepted as Scacchia antwerpiensis (Glibert, 1945) † (unaccepted > superseded combination)
    2. Species Montacuta (Aligena) capsuloides (Cossmann & Peyrot, 1912) † accepted as Kelliopsis capsuloides (Cossmann & Peyrot, 1912) † (unaccepted > superseded combination)
22. Subgenus Montacuta (Mysella) Angas, 1877 accepted as Mysella Angas, 1877 (unaccepted > superseded rank)
    1. Species Montacuta (Mysella) sibogai Prashad, 1932 accepted as Montacuta sibogai Prashad, 1932 accepted as Koreamya sibogai (Prashad, 1932) (unaccepted > superseded combination)
23. Subgenus Montacuta (Orobitella) Dall, 1900 accepted as Orobitella Dall, 1900 (unaccepted > superseded combination)
24. Subgenus Montacuta (Tellimya) T. Brown, 1827 accepted as Tellimya T. Brown, 1827
    1. Species Montacuta (Tellimya) phascolionis Dautzenberg & H. Fischer, 1925 accepted as Mioerycina coarctata (S. V. Wood, 1851) (unaccepted > junior subjective synonym)
    2. Species Montacuta (Tellimya) rudis Lynge, 1909 accepted as Montacutona rudis (Lynge, 1909)
    3. Species Montacuta (Tellimya) variabilis Lynge, 1909 accepted as Montacutona variabilis (Lynge, 1909)
    4. Species Montacuta (Tellimya) vitrea (Hedley, 1907) accepted as Coriareus vitreus Hedley, 1907 (superseded combination)
25. Species Montacuta bidentata (Montagu, 1803) accepted as Kurtiella bidentata (Montagu, 1803)
26. Species Montacuta capensis G. B. Sowerby III, 1890 accepted as Montacutona convexa (A. Gould, 1861) (unaccepted > junior subjective synonym)
27. Species Montacuta casta A. E. Verrill & K. J. Bush, 1898 accepted as Kurtiella casta (A. E. Verrill & K. J. Bush, 1898)
28. Species Montacuta ceriantha (Ponder, 1971) accepted as Montacutona mutsuwanensis G. Yamamoto & T. Habe, 1959
29. Species Montacuta christenseni Grieg, 1929 accepted as Waldo parasiticus (Dall, 1876)
30. Species Montacuta coarctata (S. V. Wood, 1851) accepted as Mioerycina coarctata (S. V. Wood, 1851) (unaccepted > superseded combination)
31. Species Montacuta convexa Monterosato, 1875 (unaccepted > nomen nudum)
32. Species Montacuta coquimbensis Hanley, 1857 accepted as Kurtiella coquimbensis (Hanley, 1857) (original combination)
33. Species Montacuta costata Lynge, 1909 accepted as Callomysia costata (Lynge, 1909)
34. Species Montacuta crassa Yokoyama, 1927 † accepted as Eolepton crassum (Yokoyama, 1927) (original combination)
35. Species Montacuta cruzensis Nowell-Usticke, 1969 accepted as Litigiella bouryi E. Lamy, 1913
36. Species Montacuta cuneata Gaglini, 1992 accepted as Tellimya semirubra (Gaglini, 1992) (synonym)
37. Species Montacuta cuneata A. E. Verrill & K. J. Bush, 1898 accepted as Pythinella cuneata (A. E. Verrill & K. J. Bush, 1898) (unaccepted > superseded combination)
38. Species Montacuta dawsoni Jeffreys, 1864 accepted as Altenaeum dawsoni (Jeffreys, 1864)
39. Species Montacuta donacina S. V. Wood, 1851 sensu Jeffreys, 1864 † accepted as Devonia perrieri (Malard, 1904) (unaccepted > misapplication)
40. Species Montacuta dromanaensis Gatliff & Gabriel, 1912 accepted as Arthritica dromanaensis (Gatliff & Gabriel, 1912) (unaccepted > superseded combination)
41. Species Montacuta elevata W. Stimpson, 1851 accepted as Kelliopsis elevata (W. Stimpson, 1851) (unaccepted > superseded combination)
42. Species Montacuta elliptica P. P. Carpenter, 1857 accepted as Kurtiella elliptica (P. P. Carpenter, 1857) (original combination)
43. Species Montacuta ferruginosa (Montagu, 1808) accepted as Tellimya ferruginosa (Montagu, 1808) (unaccepted > superseded combination)
44. Species Montacuta floridana Dall, 1899 accepted as Orobitella floridana (Dall, 1899) (unaccepted > superseded combination, original combination)
45. Species Montacuta gouldi J. H. Thomson, 1867 accepted as Kellia suborbicularis (Montagu, 1803) (unaccepted > junior subjective synonym)
46. Species Montacuta japonica Yokoyama, 1922 accepted as Montacutona japonica (Yokoyama, 1922) (unaccepted > superseded combination)
47. Species Montacuta maltzani Verkrüzen, 1875 accepted as Boreacola maltzani (Verkrüzen, 1875)
48. Species Montacuta meridionalis Tate, 1887 accepted as Parvikellia meridionalis (Tate, 1897)
49. Species Montacuta moelleri Posselt, 1898 accepted as Mysella planata (Dall, 1885)
50. Species Montacuta natalensis E. A. Smith, 1899 accepted as Kurtiella natalensis (E. A. Smith, 1899) (original combination)
51. Species Montacuta nivea (G. O. Sars, 1878) accepted as Tellimya ferruginosa (Montagu, 1808)
52. Species Montacuta oblonga W. Turton, 1822 accepted as Tellimya ferruginosa (Montagu, 1808) (synonym)
53. Species Montacuta oblongata Yokoyama, 1922 accepted as Nipponomysella oblongata (Yokoyama, 1922) (unaccepted > superseded combination)
54. Species Montacuta occidentalis E. A. Smith, 1885 accepted as Kurtiella occidentalis (E. A. Smith, 1885) (original combination)
55. Species Montacuta ornata Barnard, 1964 accepted as Callomysia ornata (Barnard, 1964)
56. Species Montacuta ovata Jeffreys, 1881 accepted as Kurtiella ovata (Jeffreys, 1881)
57. Species Montacuta paula (A. Adams, 1856) accepted as Curvemysella paula (A. Adams, 1856)
58. Species Montacuta pellucida Jeffreys, 1881 accepted as Kurtiella pellucida (Jeffreys, 1881)
59. Species Montacuta pelseneeri Prashad, 1932 accepted as Montacutona pelseneeri (Prashad, 1932) (original combination)
60. Species Montacuta percompressa Dall, 1899 accepted as Austrodevonia percompressa (Dall, 1899) (original combination)
61. Species Montacuta perezi Pelseneer, 1909 accepted as Litigiella glabra (P. Fischer, 1873) (synonym)
62. Species Montacuta pumila S. V. Wood, 1840 accepted as Draculamya pumila (J. De C. Sowerby, 1844) † accepted as Glibertia pumila (J. De C. Sowerby, 1844) † (unaccepted > nomen nudum)
63. Species Montacuta pura E. A. Smith, 1885 accepted as Tellimya pura (E. A. Smith, 1885) (original combination)
64. Species Montacuta rudis Lynge, 1909 accepted as Montacutona rudis (Lynge, 1909)
65. Species Montacuta salamensis Jaeckel & Thiele, 1931 accepted as Kelliopsis salamensis (Jaeckel & Thiele, 1931)
66. Species Montacuta semirubra Gaglini, 1992 accepted as Tellimya semirubra (Gaglini, 1992)
67. Species Montacuta sibogai Prashad, 1932 accepted as Koreamya sibogai (Prashad, 1932)
68. Species Montacuta siliqua Barnard, 1964 accepted as Nipponomysella siliqua (Barnard, 1964)
69. Species Montacuta simillima (E. A. Smith, 1892) accepted as Kurtiella pellucida (Jeffreys, 1881)
70. Species Montacuta smithi Prashad, 1932 accepted as Scintilla smithi (Prashad, 1932)
71. Species Montacuta striatula A. E. Verrill & K. J. Bush, 1898 accepted as Kurtiella striatula (A. E. Verrill & K. J. Bush, 1898)
72. Species Montacuta subquadrata P. P. Carpenter, 1857 accepted as Semelina subquadrata (P. P. Carpenter, 1857) (original combination)
73. Species Montacuta subtriangularis E. A. Smith, 1890 accepted as Montacutona convexa (A. Gould, 1861) (junior synonym)
74. Species Montacuta subtruncata Yokoyama, 1927 † accepted as Nipponomysella subtruncata (Yokoyama, 1927) (unaccepted > superseded combination)
75. Species Montacuta tellinula Odhner, 1924 accepted as Mysella tellinula (Odhner, 1924) (superseded combination)
76. Species Montacuta tenella Lovén, 1846 accepted as Tellimya tenella (Lovén, 1846) (currently placed in genus Tellimya)
77. Species Montacuta triangularis R. B. Watson, 1897 accepted as Kurtiella triangularis (R. B. Watson, 1897) (unaccepted > superseded combination)
78. Species Montacuta triquetra Suter, 1913 accepted as Parvithracia suteri H. J. Finlay, 1927 (invalid, not Verrill & Bush, 1898)
79. Species Montacuta triquetra A. E. Verrill & K. J. Bush, 1898 accepted as Spheniopsis triquetra (A. E. Verrill & K. J. Bush, 1898) (unaccepted > superseded combination)
80. Species Montacuta tumidula Jeffreys, 1866 accepted as Kurtiella tumidula (Jeffreys, 1866)
81. Species Montacuta unidentata Odhner, 1924 accepted as Mysella unidentata (Odhner, 1924) (superseded combination)
82. Species Montacuta variabilis Lynge, 1909 accepted as Montacutona variabilis (Lynge, 1909)
83. Species Montacuta venusta Lynge, 1909 accepted as Borniola venusta (Lynge, 1909)
84. Species Montacuta viaderi H. C. Ray, 1951 accepted as Kelliopsis viaderi (H. C. Ray, 1951) (unaccepted > superseded combination)
85. Species Montacuta vitrea (Hedley, 1907) accepted as Coriareus vitreus Hedley, 1907 (superseded combination)
86. Species Montacuta voeringi Friele, 1877 accepted as Tellimya voeringi (Friele, 1877)
87. Species Montacuta vöringi Friele, 1877 accepted as Tellimya voeringi (Friele, 1877) (incorrect original spelling)
88. Species Montacuta yamakawai Yokoyama, 1922 accepted as Borniopsis yamakawai (Yokoyama, 1922) (unaccepted > superseded combination)
89. Subgenus Montacuta (Montacuta) W. Turton, 1822 represented as Montacuta W. Turton, 1822
    1. Species Montacuta (Montacuta) viaderi H. C. Ray, 1951 accepted as Kelliopsis viaderi (H. C. Ray, 1951) (unaccepted > superseded combination)
90. Species Montacuta acuminata E. A. Smith, 1885 (uncertain > taxon inquirendum)
91. Species Montacuta angasi E. A. Smith, 1885 (uncertain > nomen dubium)
92. Species Montacuta chalcedonica P. P. Carpenter, 1857 (uncertain > nomen dubium)
93. Species Montacuta exigua Cossmann, 1896 † (uncertain > unassessed)
94. Species Montacuta grandis R. A. Philippi, 1887 † (uncertain > unassessed)
95. Species Montacuta obliqua R. A. Philippi, 1887 † (uncertain > unassessed)
96. Species Montacuta obtusa P. P. Carpenter, 1865 (uncertain > nomen dubium)

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