| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Glandulactis spetsbergensis (Carlgren 1893) | 0 | 0 | 1 |
| Actinostolidae Carlgren 1932 | 2 | 0 | 0 |
| Acuariidae Railliet, Henry & Sisoff 1912 | 1 | 0 | 0 |
| Adelococcaceae | 1 | 0 | 0 |
| Adelolecia | 1 | 0 | 0 |
| Adelolecia pilati (Hepp) Hertel & Hafellner | 0 | 0 | 1 |
| Adenophorea | 1 | 0 | 0 |
| Admete Krøyer 1842 | 1 | 0 | 0 |
| Admete viridula (Fabricius 1780) | 0 | 0 | 1 |
| Aega Leach 1815 | 1 | 0 | 0 |
| Aega psora (Linnaeus 1758) | 0 | 0 | 1 |
| Aegidae White 1850 | 2 | 0 | 0 |
| Aeginella Boeck 1861 | 1 | 0 | 0 |
| Aeginella spinosa Boeck 1861 | 0 | 0 | 1 |
| Aeginina Norman 1905 | 1 | 0 | 0 |
