Wikipedia
Crangonyctidae
Crangonyctidae is a family of cave-dwelling freshwater amphipod crustaceans. It contains the following genera:
- Amurocrangonyx Sidorov & Holsinger, 2007
- Bactrurus Hay, 1902
- Crangonyx Bate, 1859
- Lyurella Derzhavin, 1939
- † Palaeogammarus Zaddach, 1864
- Stygobromus Cope, 1872
- Stygonyx Bousfield & Holsinger, 1989