Epialtidae MacLeay, 1838
Acanthonyx brevifrons A. Milne-Edwards, 1869
Acanthonyx consobrinus A. Milne-Edwards, 1862
Acanthonyx dentatus H. Milne Edwards, 1834
Acanthonyx depressifrons Manning & Holthuis, 1981
Acanthonyx dissimulatus Coelho, 1993
Acanthonyx elongatus Miers, 1877
Acanthonyx euryseroche Griffin & Tranter, 1986
Acanthonyx formosa Wu, Yu & Ng, 1999
Acanthonyx inglei Tirmizi & Kazmi, 1988
Acanthonyx limbatus A. Milne-Edwards, 1862
Acanthonyx lunulatus (Risso, 1816)
Acanthonyx minor Manning & Holthuis, 1981
Acanthonyx nodulosa (Dana, 1852)
Acanthonyx petiverii H. Milne Edwards, 1834
Acanthonyx quadridentatus Krauss, 1843
Acanthonyx sanctaehelenae Chace, 1966
Acanthonyx scutellatus MacLeay, 1838
Acanthonyx scutiformis (Dana, 1851)
Acanthonyx undulatus Barnard, 1947