1. Species Achelia adelpha Child, 1970
2. Species Achelia alaskensis (Cole, 1904)
3. Species Achelia anomala Arnaud, 1974
4. Species Achelia armata Bouvier, 1916
5. Species Achelia aspera Loman, 1923
6. Species Achelia assimilis (Haswell, 1885)
7. Species Achelia australiensis Miers, 1884
8. Species Achelia barnardi Stock, 1959
9. Species Achelia besnardi Sawaya, 1951
10. Species Achelia bituberculata Hedgpeth, 1949
11. Species Achelia borealis (Schimkewitsch, 1895)
12. Species Achelia boschi Stock, 1992
13. Species Achelia brevicauda (Loman, 1904)
14. Species Achelia brevirostris Losina-Losinsky, 1961
15. Species Achelia bullosa Child, 1996
16. Species Achelia chelata (Hilton, 1939)
17. Species Achelia columnaris Stock, 1992
18. Species Achelia communis (Bouvier, 1906)
19. Species Achelia crurispinifera Kim & Kim, 1985
20. Species Achelia cuneatis Child, 1999
21. Species Achelia curticauda Nakamura, Miyazaki & Child, 1996
22. Species Achelia deodata Muller, 1990
23. Species Achelia discoidea Exline, 1936
24. Species Achelia dohrni (Thompson, 1884)
25. Species Achelia echinata Hodge, 1864
26. Species Achelia euryfrontalis Turpaeva, 2000
27. Species Achelia fernandeziana (Loman, 1920)
28. Species Achelia gracilipes (Cole, 1904)
29. Species Achelia gracilis Verrill, 1900
30. Species Achelia grancapis Turpaeva, 2007
31. Species Achelia hariettae Marcus, 1940
32. Species Achelia hoekii (Pfeffer, 1889)
33. Species Achelia japonica Ortmann, 1890
34. Species Achelia kiiensis Utinomi, 1951
35. Species Achelia kurilensis Losina-Losinsky, 1961
36. Species Achelia laevis Hodge, 1864
37. Species Achelia lagena Child, 1994
38. Species Achelia lagenaria Stock, 1992
39. Species Achelia langi (Dohrn, 1881)
40. Species Achelia latifrons (Cole, 1904)
41. Species Achelia megova (Hilton, 1943)
42. Species Achelia microsetosa Turpaeva, 2007
43. Species Achelia mixta Stock, 1994
44. Species Achelia nana (Loman, 1908)
45. Species Achelia neotenica Krapp, 1986
46. Species Achelia orientalis Schimkewitsch, 1913
47. Species Achelia orpax Nakamura & Child, 1983
48. Species Achelia ovosetosa (Hilton, 1942)
49. Species Achelia parvula (Loman, 1923)
50. Species Achelia pribilofensis (Cole, 1904)
51. Species Achelia quadridentata (Hodgson, 1910)
52. Species Achelia rostrata Turpaeva, 2000
53. Species Achelia salebrosa Losina-Losinsky, 1961
54. Species Achelia sawayai Marcus, 1940
55. Species Achelia scabra Wilson, 1880
56. Species Achelia serratipalpis (Bouvier, 1911)
57. Species Achelia setulosa (Loman, 1912)
58. Species Achelia shepherdi Stock, 1973
59. Species Achelia simplex (Giltay, 1934)
60. Species Achelia simplissima (Hilton, 1939)
61. Species Achelia socors (Loman, 1908)
62. Species Achelia spatula Nakamura, K. & C.A. Child., 1983
63. Species Achelia spicata (Hodgson, 1914)
64. Species Achelia spinosa (Stimpson, 1853)
65. Species Achelia spinoseta (Hilton, 1939)
66. Species Achelia sufflata Gordon, 1944
67. Species Achelia superba (Loman, 1911)
68. Species Achelia tenuipes Stock, 1990
69. Species Achelia transfuga Stock, 1954
70. Species Achelia transfugoides Stock, 1973
71. Species Achelia turba Stock, 1990
72. Species Achelia vulgaris (Costa, 1861)
73. Species Achelia watamu (Müller, 1990)
74. Species Achelia germanica (Hodgson, 1915) (uncertain > nomen dubium)
75. Species Achelia hispida Hodge, 1864 (uncertain > nomen dubium)
76. Species Achelia megacephala Hodgson, 1914 (uncertain > nomen dubium)
77. Species Achelia segmentata Utinomi, 1954 (uncertain > nomen dubium)
78. Species Achelia adunca (Child, C.A., 1994) accepted as Ammothea adunca Child, 1994 (synonym)
79. Species Achelia affinis (Bouvier, 1906) accepted as Achelia communis (Bouvier, 1906)
80. Species Achelia brevichelifera Hedgpeth, 1948 accepted as Megarhethus brevicheliferus (Hedgpeth, 1948)
81. Species Achelia brucei Calman, 1915 accepted as Achelia communis (Bouvier, 1906)
82. Species Achelia elongata (Hilton, 1943) accepted as Achelia borealis (Schimkewitsch, 1895)
83. Species Achelia euchelata (Hedgpeth, 1940) accepted as Achelia chelata (Hilton, 1939) (synonym)
84. Species Achelia fibulifera (Dohrn, 1881) accepted as Achelia echinata Hodge, 1864
85. Species Achelia franciscana (Dohrn, 1881) accepted as Achelia vulgaris (Costa, 1861)
86. Species Achelia gurjanovii Losina-Losinsky, 1961 accepted as Achelia alaskensis (Cole, 1904)
87. Species Achelia hoeki (Loman, 1923) accepted as Achelia communis (Bouvier, 1906)
88. Species Achelia intermedia Calman, 1915 accepted as Achelia spicata (Hodgson, 1914)
89. Species Achelia kamtschatica Losina-Losinsky, 1961 accepted as Achelia alaskensis (Cole, 1904)
90. Species Achelia lavrentii (Losina-Losinsky, L.K., 1933) accepted as Achelia spinosa (Stimpson, 1853) (junior synonym)
91. Species Achelia litke (Losina-Losinsky, L.K., 1933) accepted as Achelia spinosa (Stimpson, 1853) (junior synonym)
92. Species Achelia longipes (Hodge, 1864) accepted as Ammothella longipes (Hodge, 1864)
93. Species Achelia magnirostris (Dohrn, 1881) accepted as Ammothella longipes (Hodge, 1864)
94. Species Achelia mitrata Gordon, 1944 accepted as Sericosura mitrata (Gordon, 1944)
95. Species Achelia nudiuscula (Hall, 1913) accepted as Achelia alaskensis (Cole, 1904) (synonym)
96. Species Achelia ohshimai Utinomi, 1951 accepted as Achelia bituberculata Hedgpeth, 1949
97. Species Achelia simpliscima (Hilton, 1942) accepted as Achelia simplissima (Hilton, 1939) (misspelling)
98. Species Achelia sinensis Lou, 1935 accepted as Achelia japonica Ortmann, 1890 (Junior synonym)
99. Species Achelia spatulata Nakamura & Child, 1983 accepted as Achelia spatula Nakamura, K. & C.A. Child., 1983
100. Species Achelia uni-unguiculata (Dohrn, 1881) accepted as Ammothella uniunguiculata (Dohrn, 1881) (unaccepted > superseded combination)
101. Species Achelia uschakovi Losina-Losinsky L.K., 1933 accepted as Achelia spinosa (Stimpson, 1853)
102. Species Achelia variabilis Stock, 1954 accepted as Achelia assimilis (Haswell, 1885)
103. Species Achelia wilsoni (Schimkewitsch, 1890) accepted as Achelia assimilis (Haswell, 1885)

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