Fam. Acinetidae Stein, 1859

- Acineta Ehrenberg, 1833 [1834]
- Acinetides Swarczewsky, 1928
- Acinetopsis Robin, 1879
- Arcosoma Jankowski, 1967
- Cryptophrya Jankowski, 1973
- Dactylophrya Collin, 1909 [syn. of Tachyblaston]
- Lecanodiscus Jankowski, 1973
- Loricophrya Matthes, 1956
- Plicophrya Jankowski, 1975 [syn. of Acineta]
- Pseudocorynophrya Small & Lynn, 1985
- Pseudogemma Collin, 1909
- Pseudogemmides Kormos, 1935
- Solenophrya Claparède & Lachmann, 1859
- Squalorophrya Goodrich & Jahn, 1943 [potentially valid]
- Suctorella Frenzel, 1891 [1892]
- Tokophryella Jankowski, 1973
- Trematosoma Batisse, 1972 [1973]

Incertae sedis in Family Acinetidae

- Cucumophrya Kunz, 1936