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