Dikerogammarus is a genus of amphipod crustaceans, containing the following species:Dikerogammarus aralychensis (Birstein, 1932)Dikerogammarus batalonicus Ponyi, 1955Dikerogammarus bispinosus Martynov, 1925Dikerogammarus caspius (Pallas, 1771)Dikerogammarus fluviatilis Martynov, 1919Dikerogammarus gruberi Mateus & Mateus, 1990Dikerogammarus haemobaphes (Eichwald, 1841)Dikerogammarus istanbulensis Özbek & Özkan, 2011Dikerogammarus oskari Birstein, 1945Dikerogammarus villosus (Sowinsky, 1894)↑ ↑