1. Species Haploniscus acutirostris Menzies & George, 1972
2. Species Haploniscus acutus Menzies, 1962
3. Species Haploniscus aduncus Lincoln, 1985
4. Species Haploniscus ampliatus Lincoln, 1985
5. Species Haploniscus angolensis Brökeland, 2010
6. Species Haploniscus angustus Lincoln, 1985
7. Species Haploniscus antarcticus Vanhöffen, 1914
8. Species Haploniscus apaticus Knauber & Riehl in Knauber, Schell, Brandt & Riehl, 2025
9. Species Haploniscus astraphes Brökeland & Svavarsson, 2017
10. Species Haploniscus belyaevi Birstein, 1963
11. Species Haploniscus bicuspis (G. O. Sars, 1877)
12. Species Haploniscus bihastatus Brökeland, 2010
13. Species Haploniscus borealis Lincoln, 1985
14. Species Haploniscus bruuni Menzies & George, 1972
15. Species Haploniscus capensis Menzies, 1962
16. Species Haploniscus cassilatus Brökeland & Raupach, 2008
17. Species Haploniscus charcoti Chardy, 1975
18. Species Haploniscus cucullus Brökeland & Raupach, 2008
19. Species Haploniscus curvirostris Vanhöffen, 1914
20. Species Haploniscus erebus Knauber & Riehl in Knauber, Schell, Brandt & Riehl, 2025
21. Species Haploniscus excisus Richardson, 1908
22. Species Haploniscus foresti Chardy, 1974
23. Species Haploniscus furcatus Chardy, 1974
24. Species Haploniscus gernekei Kensley, 1978
25. Species Haploniscus gibbernasutus Birstein, 1971
26. Species Haploniscus gnanamuthi George, 2004
27. Species Haploniscus hades Knauber & Riehl in Knauber, Schell, Brandt & Riehl, 2025
28. Species Haploniscus hamatus Lincoln, 1985
29. Species Haploniscus harrietae George, 2004
30. Species Haploniscus helgei Wolff, 1962
31. Species Haploniscus hydroniscoides Birstein, 1963
32. Species Haploniscus inermis Birstein, 1971
33. Species Haploniscus ingolfi Wolff, 1962
34. Species Haploniscus intermedius Birstein, 1971
35. Species Haploniscus kensleyi George, 2004
36. Species Haploniscus kerberos Knauber & Riehl in Knauber, Schell, Brandt & Riehl, 2025
37. Species Haploniscus kermadecensis Wolff, 1962
38. Species Haploniscus kyrbasia Brökeland & Raupach, 2008
39. Species Haploniscus laticephalus Birstein, 1968
40. Species Haploniscus machairis Brökeland, 2010
41. Species Haploniscus menziesi Birstein, 1963
42. Species Haploniscus miccus Lincoln, 1985
43. Species Haploniscus microkorys Brökeland & Raupach, 2008
44. Species Haploniscus minutus Menzies, 1962
45. Species Haploniscus monoceros Brökeland, 2010
46. Species Haploniscus monodi Chardy, 1974
47. Species Haploniscus myriamae Chardy, 1974
48. Species Haploniscus nondescriptus Menzies, 1962
49. Species Haploniscus nudifrons Brökeland & Raupach, 2008
50. Species Haploniscus nyx Knauber & Riehl in Knauber, Schell, Brandt & Riehl, 2025
51. Species Haploniscus obtusifrons Chardy, 1974
52. Species Haploniscus oviformis Birstein, 1968
53. Species Haploniscus percavix Menzies, 1962
54. Species Haploniscus piestus Lincoln, 1985
55. Species Haploniscus polaris Menzies, 1962
56. Species Haploniscus procerus Brökeland & Raupach, 2008
57. Species Haploniscus profundicolus Birstein, 1971
58. Species Haploniscus pygmaeus Birstein, 1969
59. Species Haploniscus retrospinis Richardson, 1908
60. Species Haploniscus robinsoni Menzies & Tinker, 1960
61. Species Haploniscus rostratus (Menzies, 1962)
62. Species Haploniscus rugosus Menzies, 1962
63. Species Haploniscus saphos Lincoln, 1985
64. Species Haploniscus silus Lincoln, 1985
65. Species Haploniscus similis Birstein, 1968
66. Species Haploniscus spatulifrons Menzies, 1962
67. Species Haploniscus spinifer Hansen, 1916
68. Species Haploniscus tangaroae Lincoln, 1985
69. Species Haploniscus telus Menzies, 1962
70. Species Haploniscus tricornis Menzies, 1962
71. Species Haploniscus tricornoides Menzies, 1962
72. Species Haploniscus tridens Menzies, 1962
73. Species Haploniscus tropicalis Menzies, 1962
74. Species Haploniscus tuberculatus Menzies, 1962
75. Species Haploniscus ultraabyssalis Birstein, 1963
76. Species Haploniscus unicornis Menzies, 1956
77. Species Haploniscus weddellensis Brökeland & Raupach, 2008
78. Species Haploniscus armadilloides Hansen, 1916 accepted as Chauliodoniscus armadilloides (Hansen, 1916) (basionym)
79. Species Haploniscus concavus Menzies & George, 1972 accepted as Mastigoniscus concavus (Menzies & George, 1972) (basionym)
80. Species Haploniscus dimeroceras Barnard, 1920 accepted as Antennuloniscus dimeroceras (Barnard, 1920) (unaccepted > superseded combination)
81. Species Haploniscus elevatus Menzies, 1962 accepted as Chauliodoniscus elevatus (Menzies, 1962) (basionym)
82. Species Haploniscus generalis Menzies & George, 1972 accepted as Mastigoniscus generalis (Menzies & George, 1972) (basionym)
83. Species Haploniscus gratissimus Menzies & George, 1972 accepted as Mastigoniscus gratissimus (Menzies & George, 1972) (basionym)
84. Species Haploniscus gratus Menzies & George, 1972 accepted as Mastigoniscus gratus (Menzies & George, 1972) (basionym)
85. Species Haploniscus latus Birstein, 1971 accepted as Mastigoniscus latus (Birstein, 1971) (unaccepted > superseded combination)
86. Species Haploniscus microcephalus Gamo, 1989 accepted as Mastigoniscus microcephalus (Gamo, 1989) (basionym)
87. Species Haploniscus ovalis Menzies, 1962 accepted as Chauliodoniscus ovalis (Menzies, 1962) (basionym)
88. Species Haploniscus parallelus Menzies, 1962 accepted as Chauliodoniscus parallelus (Menzies, 1962) (basionym)
89. Species Haploniscus princeps Menzies, 1962 accepted as Chauliodoniscus princeps (Menzies, 1962) (basionym)
90. Species Haploniscus quadrifrons Menzies, 1962 accepted as Chauliodoniscus quadrifrons (Menzies, 1962) (basionym)
91. Species Haploniscus reyssi Chardy, 1974 accepted as Chauliodoniscus reyssi (Chardy, 1974) (basionym)
92. Species Haploniscus trituberculatus Menzies, 1962 accepted as Chauliodoniscus trituberculatus (Menzies, 1962) (basionym)

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