| Family | Australocytheridae
Hartmann, 1980 ⇒ Australocytherideidae
| 0
0 | Genera
Species |
| Family | Australocytherideidae
Hartmann, 1980
| 1
1 | Genus
Species |
| Family | Bonaducecytheridae
Mackenzie, 1977
| 0
0 | Genera
Species |
| Family | Bythocytheridae
Sars, 1866
| 118
601 | Genera
Species |
| Family | Cobanocytheridae
Schornikov, 1975
| 5
38 | Genera
Species |
| Family | Cuneocytheridae
Mandelstam, 1959
| 3
16 | Genera
Species |
| Family | Cushmanideidae
Puri, 1973
| 3
116 | Genera
Species |
| Family | Cytheralisonidae
Jellinek & Swanson, 2003
| 2
10 | Genera
Species |
| Family | Cytherettidae
Triebel, 1972
| 14
291 | Genera
Species |
| Family | Cytheridae
Baird, 1850
| 62
1325 | Genera
Species |
| Family | Cytherideidae
Sars, 1925
| 83
954 | Genera
Species |
| Family | Cytheromatidae
Elofson, 1939
| 8
89 | Genera
Species |
| Family | Cytheruridae
G.W. Müller, 1894
| 68
1670 | Genera
Species |
| Family | Entocytheridae
Hoff, 1942
| 37
322 | Genera
Species |
| Family | Eucytheridae
Puri, 1954
| 16
111 | Genera
Species |
| Family | Hemicytheridae
Puri, 1953
| 106
1230 | Genera
Species |
| Family | Kliellidae
Schäfer, 1945
| 2
4 | Genera
Species |
| Family | Krithidae
Mandelstam, 1960
| 16
222 | Genera
Species |
| Family | Leptocytheridae
Hanai, 1957
| 22
389 | Genera
Species |
| Family | Limnocytheridae
Klie, 1938
| 38
276 | Genera
Species |
| Family | Loxoconchidae
Sars, 1925
| 53
830 | Genera
Species |
| Family | Microcytheridae
Klie, 1938
| 3
51 | Genera
Species |
| Family | Neocytherideidae
Puri, 1957
| 7
50 | Genera
Species |
| Family | Paracytherideidae
Puri, 1957
| 8
105 | Genera
Species |
| Family | Paradoxostomatidae
Brady & Norman, 1889
| 34
561 | Genera
Species |
| Family | Parvocytheridae
Hartmann, 1959
| 3
20 | Genera
Species |
| Family | Pectocytheridae
Hanai, 1957
| 20
131 | Genera
Species |
| Family | Protocytheridae ♰
Ljubimova, 1956
| 18
149 | Genera
Species |
| Family | Psammocytheridae
Klie, 1938
| 2
7 | Genera
Species |
| Family | Pseudolimnocytheridae
Hartmann & Puri, 1974
| 1
4 | Genus
Species |
| Family | Saididae
Aranki, McKenzie, Reyment & Reyment, 1992
| 2
14 | Genera
Species |
| Family | Schizocytheridae
Howe, 1961
| 6
51 | Genera
Species |
| Family | Thaerocytheridae
Hazel, 1967
| 15
91 | Genera
Species |
| Family | Trachyleberididae
Sylvester-Bradley, 1948
| 279
3195 | Genera
Species |
| Family | Trachyleheridae
Sylvester-Bradley, 1948 ⇒ Trachyleberididae
| 0
0 | Genera
Species |
| Family | Xestoleberidae
Sars, 1928 ⇒ Xestoleberididae
| 0
0 | Genera
Species |
| Family | Xestoleberididae
Sars, 1928
| 16
387 | Genera
Species |
