1. Species Nenia tridens (Schweigger, 1820)
2. Subgenus Nenia (Andinia) Poliński, 1922 accepted as Andinia Poliński, 1922
   1. Species Nenia (Andinia) barcrofti Pilsbry, 1957 accepted as Neniops barcrofti (Pilsbry, 1957) (unaccepted > superseded combination, basionym)
3. Subgenus Nenia (Columbinia) Poliński, 1924 accepted as Columbinia Poliński, 1924 (unaccepted rank)
   1. Species Nenia (Columbinia) atracta Pilsbry, 1949 accepted as Columbinia atracta (Pilsbry, 1949) (basionym)
   2. Species Nenia (Columbinia) binkiae Pilsbry, 1949 accepted as Columbinia binkiae (Pilsbry, 1949) (basionym)
   3. Species Nenia (Columbinia) gracilis Pilsbry, 1949 accepted as Columbinia gracilis (Pilsbry, 1949) (basionym)
   4. Species Nenia (Columbinia) koepckei Zilch, 1953 accepted as Pfeifferiella koepckei (Zilch, 1953) (original combination)
   5. Species Nenia (Columbinia) obesa F. Haas, 1949 accepted as Columbinia obesa (F. Haas, 1949) (original combination)
   6. Species Nenia (Columbinia) sublutea O. Boettger, 1909 accepted as Columbinia sublutea (O. Boettger, 1909) (unaccepted combination)
   7. Species Nenia (Columbinia) zischkai Weyrauch, 1956 represented as Columbinia zischkai (Weyrauch, 1956)
4. Subgenus Nenia (Cylindronenia) Ehrmann, 1949 accepted as Cylindronenia Ehrmann, 1949 (unaccepted rank)
   1. Species Nenia (Cylindronenia) cumulloana Pilsbry, 1949 accepted as Cylindronenia cumulloana (Pilsbry, 1949) (original combination)
   2. Species Nenia (Cylindronenia) maranhonensis (Albers, 1854) accepted as Cylindronenia maranhonensis (Albers, 1854) (unaccepted > superseded combination)
   3. Species Nenia (Cylindronenia) sztolcmani Poliński, 1922 accepted as Andiniella sztolcmani (Poliński, 1922) (unaccepted combination)
   4. Species Nenia (Cylindronenia) wagneri Polinski, 1921 accepted as Andiniella wagneri (Polinski, 1921) (unaccepted combination)
5. Subgenus Nenia (Gonionenia) Pilsbry, 1926 accepted as Gonionenia Pilsbry, 1926 (original rank)
6. Subgenus Nenia (Gracilinenia) Poliński, 1922 accepted as Gracilinenia Poliński, 1922 (original rank)
   1. Species Nenia (Gracilinenia) huallagana Pilsbry, 1949 accepted as Pseudogracilinenia huallagana (Pilsbry, 1949) (original combination)
7. Subgenus Nenia (Hemicena) Pilsbry, 1949 accepted as Hemicena Pilsbry, 1949 (original rank)
   1. Species Nenia (Hemicena) polinskiana Pilsbry, 1949 accepted as Hemicena polinskiana (Pilsbry, 1949) (basionym)
8. Subgenus Nenia (Incaglaia) Pilsbry, 1949 accepted as Incaglaia Pilsbry, 1949 (original rank)
   1. Species Nenia (Incaglaia) olssoni Pilsbry, 1949 accepted as Incaglaia olssoni (Pilsbry, 1949) (basionym)
9. Subgenus Nenia (Neniastrum) Bourguignat, 1876 accepted as Nenia H. Adams & A. Adams, 1855 (unaccepted > junior objective synonym)
10. Subgenus Nenia (Neniatracta) Pilsbry, 1926 accepted as Neniatracta Pilsbry, 1926 (original rank)
    1. Species Nenia (Neniatracta) adusta (O. Boettger, 1880) accepted as Incaglaia adusta (O. Boettger, 1880) (unaccepted combination)
    2. Species Nenia (Neniatracta) angrandi (Morelet, 1863) accepted as Incaglaia angrandi (Morelet, 1863) (unaccepted combination)
    3. Species Nenia (Neniatracta) balnearum Crawford, 1939 accepted as Parabalea balnearum (Crawford, 1939) (original combination)
11. Subgenus Nenia (Neniops) Pilsbry, 1926 accepted as Neniops Pilsbry, 1926 (original rank)
    1. Species Nenia (Neniops) bogotensis (O. Boettger, 1879) accepted as Neniops bogotensis (O. Boettger, 1879) (unaccepted > superseded combination)
    2. Species Nenia (Neniops) karsteniana (Dohrn, 1860) accepted as Neniops karstenianus (Dohrn, 1860) (unaccepted > superseded combination)
    3. Species Nenia (Neniops) perezi Jousseaume, 1887 accepted as Columbinia perezi (Jousseaume, 1887) (unaccepted > superseded combination)
12. Subgenus Nenia (Nenisca) Rehder, 1939 accepted as Nenisca Rehder, 1939 (original combination)
    1. Species Nenia (Nenisca) bartschi Rehder, 1939 accepted as Nenisca bartschi (Rehder, 1939) (unaccepted > superseded combination)
13. Subgenus Nenia (Paranenia) Rehder, 1939 accepted as Paranenia Rehder, 1939 (original combination)
14. Subgenus Nenia (Steatonenia) Pilsbry, 1926 accepted as Columbinia (Steatonenia) Pilsbry, 1926 represented as Columbinia Poliński, 1924 (unaccepted > superseded combination)
15. Subgenus Nenia (Steeriana) Jousseaume, 1900 accepted as Steeriana Jousseaume, 1900
    1. Species Nenia (Steeriana) malleolata (R. A. Philippi, 1867) accepted as Steeriana malleolata (R. A. Philippi, 1867) (unaccepted > superseded combination)
    2. Species Nenia (Steeriana) steeriana (Sykes, 1893) (uncertain > taxon inquirendum)
16. Species Nenia angrandi (Morelet, 1863) accepted as Incaglaia (Incaglaia) angrandi (Morelet, 1863) represented as Incaglaia angrandi (Morelet, 1863) (unaccepted combination)
17. Species Nenia anoecia Ehrmann, 1949 accepted as Incania anoecia (Ehrmann, 1949) (unaccepted > superseded combination, basionym)
18. Species Nenia archidona Jousseaume, 1900 accepted as Neniops archidona (Jousseaume, 1900) (original combination)
19. Species Nenia argentina Hylton Scott, 1954 accepted as Incaglaia argentina (Hylton Scott, 1954) (basionym)
20. Species Nenia auriculina Jousseaume, 1900 accepted as Incania auriculina (Jousseaume, 1900) (original combination)
21. Species Nenia belahubbardi Pilsbry, 1922 accepted as Neniatracta belahubbardi (Pilsbry, 1922) (original combination)
22. Species Nenia bequaerti Arias, 1953 accepted as Neniops bequaerti (Arias, 1953) (unaccepted > superseded combination, original combination)
23. Species Nenia blandiana (L. Pfeiffer, 1856) accepted as Columbinia blandiana (L. Pfeiffer, 1856)
24. Species Nenia bryantwalkeri Pilsbry, 1922 accepted as Columbinia bryantwalkeri (Pilsbry, 1922) (original combination)
25. Species Nenia callangana Ehrmann, 1905 accepted as Columbinia callangana (Ehrmann, 1905) (original combination)
26. Species Nenia callistoglypta Pilsbry, 1949 accepted as Incaglaia adusta callistoglypta (Pilsbry, 1949) (original combination)
27. Species Nenia canescens Poliński, 1922 accepted as Cylindronenia canescens (Poliński, 1922) (unaccepted > superseded combination, basionym)
28. Species Nenia cocaensis Jousseaume, 1900 accepted as Columbinia cocaensis (Jousseaume, 1900) (original combination)
29. Species Nenia columbiana Poliński, 1924 accepted as Columbinia columbiana (Poliński, 1924) (original combination)
30. Species Nenia cooki Pilsbry, 1919 accepted as Columbinia (Steatonenia) cooki (Pilsbry, 1919) represented as Columbinia cooki (Pilsbry, 1919) (original combination)
31. Species Nenia cousini Jousseaume, 1900 accepted as Columbinia cousini (Jousseaume, 1900) (original combination)
32. Species Nenia eka Pilsbry, 1945 accepted as Parabalea eka (Pilsbry, 1945) (original combination)
33. Species Nenia eugeniae Poliński, 1922 accepted as Gracilinenia eugeniae (Poliński, 1922) (unaccepted > superseded combination, basionym)
34. Species Nenia femurina Jousseaume, 1900 accepted as Columbinia perezi (Jousseaume, 1887) (unaccepted > junior subjective synonym)
35. Species Nenia flachi O. Boettger, 1889 accepted as Peruinia peruana flachi (O. Boettger, 1889) (original combination and rank)
36. Species Nenia geayi Jousseaume, 1900 accepted as Neniops geayi (Jousseaume, 1900) (original combination)
37. Species Nenia horrida Mabille, 1887 accepted as Grandinenia ardouiniana (Heude, 1885) (junior synonym)
38. Species Nenia huancabambensis Rolle, 1904 accepted as Columbinia huancabambensis (Rolle, 1904) (original combination)
39. Species Nenia jelskii Poliński, 1922 accepted as Incania jelskii (Poliński, 1922) (unaccepted > superseded combination)
40. Species Nenia juninensis M. Smith, 1943 accepted as Columbinia juninensis (M. Smith, 1943) (original combination)
41. Species Nenia maranhonensis (Albers, 1854) accepted as Cylindronenia maranhonensis (Albers, 1854) (unaccepted > superseded combination)
42. Species Nenia marshalli Pilsbry, 1926 accepted as Columbinia marshalli (Pilsbry, 1926) (original combination)
43. Species Nenia minuscula Pilsbry, 1945 accepted as Parabalea eka (Pilsbry, 1945) (unaccepted > junior subjective synonym)
44. Species Nenia orbignyi Ancey, 1892 accepted as Columbinia orbignyi (Ancey, 1892) (original combination)
45. Species Nenia orientalis Mabille, 1887 accepted as Tropidauchenia orientalis (Mabille, 1887) (original combination)
46. Species Nenia pampasensis (Pilsbry, 1910) accepted as Incaglaia pampasensis (Pilsbry, 1910) (unaccepted > superseded combination)
47. Species Nenia parcecostata Poliński, 1922 accepted as Temesa parcecostata (Poliński, 1922) accepted as Parabalea parcecostata (Polinski, 1922) (unaccepted > superseded combination, basionym)
48. Species Nenia perezi Jousseaume, 1887 accepted as Columbinia perezi (Jousseaume, 1887) (original combination)
49. Species Nenia pusilla Poliński, 1922 accepted as Temesa pusilla (Polinski, 1921) (unaccepted > superseded combination, basionym)
50. Species Nenia quadrata (O. Boettger, 1880) accepted as Ehrmanniella quadrata (O. Boettger, 1880) (unaccepted > superseded combination)
51. Species Nenia raimondii (R. A. Philippi, 1867) accepted as Incaglaia raimondii (R. A. Philippi, 1867) (unaccepted > superseded combination)
52. Species Nenia reyrei Jousseaume, 1887 accepted as Columbinia reyrei (Jousseaume, 1887) (original combination)
53. Species Nenia rochebrunii Jousseaume, 1900 accepted as Gonionenia rochebrunii (Jousseaume, 1900) (original combination)
54. Species Nenia smithiae Pilsbry, 1901 accepted as Neniops smithiae (Pilsbry, 1901) (original combination)
55. Species Nenia Steatonenia Pilsbry, 1926 accepted as Columbinia (Steatonenia) Pilsbry, 1926 represented as Columbinia Poliński, 1924
56. Species Nenia stylina Ancey, 1887 accepted as Columbinia stylina (Ancey, 1887) (original combination)
57. Species Nenia subarcuata Bofill, 1897 accepted as Bofilliella subarcuata (Bofill, 1897) (unaccepted > superseded combination)
58. Species Nenia sublutea O. Boettger, 1909 accepted as Columbinia sublutea (O. Boettger, 1909) (original combination)
59. Species Nenia sztolcmani Poliński, 1922 accepted as Andiniella sztolcmani (Poliński, 1922) (original combination)
60. Species Nenia versicolor Jousseaume, 1900 accepted as Incaglaia raimondii versicolor (Jousseaume, 1900) (basionym)
61. Species Nenia wagneri Polinski, 1921 accepted as Andiniella wagneri (Polinski, 1921) (original combination)
62. Species Nenia warszewiczi Poliński, 1924 accepted as Incania warszewiczi (Poliński, 1924) (unaccepted > superseded combination, original combination)
63. Species Nenia weyrauchi Pilsbry, 1945 accepted as Incaglaia angrandi weyrauchi (Pilsbry, 1945) (basionym)
64. Subgenus Nenia (Nenia) H. Adams & A. Adams, 1855 represented as Nenia H. Adams & A. Adams, 1855
    1. Species Nenia (Nenia) tridens (Schweigger, 1820) represented as Nenia tridens (Schweigger, 1820)
65. Species Nenia acobambensis Pilsbry, 1845 (uncertain > taxon inquirendum)
66. Species Nenia lubomirskii Poliński, 1922 (uncertain > taxon inquirendum)

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