| The |
Families/Family Groups |
Stygobiont species |
Genera |
|
| Allocrangonyctidae | 2 | 1 | |
| Aoridae (stygobionts ?) | 1 (?) | 1 | |
| Bogidiellidae (includes Artesiidae) | 105 | 33 | |
| Calliopiidae | 3 | 3 | |
| Crangonyctidae | 156 | 6 | |
| Gammaridae | 37 (ca.) | 17 | |
| Hadziidae * | 78 (ca.) | 26 (ca.) | |
| Hyalellidae (includes Ceinidae) | 2 | 2 | |
| Hyalidae | 3 | 1 | |
| Ingolfiellidae | 37 | 3 | |
| Liljeborgiidae (stygobionts ?) | 1 (?) | 1 | |
| Lysiannasidae | 1 | 1 | |
| Melitidae * | 54 (ca.) | 23 (ca.) | |
| Metacrangonyctidae | 14 | 2 | |
| Metaingolfiellidae | 1 | 1 | |
| Neoniphargidae | 1 | 2 | |
| Niphargidae | 221 | 8 | |
| Paracrangonyctidae | 3 | 2 | |
| Paramelitidae | 10 (?) | 9 | |
| Pardaliscidae | 3 | 2 | |
| Perthiidae | 1 | 1 | |
| Phoxocephalidae (no stygobionts) | - | - | |
| Phreatogammaridae | 2 | 2 | |
| Pleustidae | 3 | 2 | |
| Pseudocrangonyctidae | 11 | 2 | |
| Salentinellidae | 14 | 2 | |
| Sebidae | 2 | 1 | |
| Sternophysingidae | 8 | 1 | |
| Talitridae (terrestrial) | 3 | 3 | |
Family groups (undescribed) |
Stygobiont species |
Genera |
|
| Austroniphargus/Sandro | 3 | 2 | |
| Crangoweckelia/Pintaweckelia | 3 | 2 | |
| Eoniphargus/Indoniphargus | 3 | 2 | |
| Falklandellids | 2 (?) | 2 | |
| Pseudoniphargids | 62 | 2 | |
| Sensonator group | 1 | 1 | |
| Uronyctus group | 1 | 1 | |
| Cottarellia group | 1 | 1 | |
| * Taxonomic status of listed groups is controversial. | |||