Jassa is a genus of amphipods in the family Ischyroceridae, comprising the following species: \n* Jassa algensis (Nardo, 1847) \n* Jassa alonsoae Conlan, 1990 \n* Jassa australis (Haswell, 1879) \n* Jassa barnardi Stephensen, 1949 \n* Jassa borowskyae conlan, 1990 \n* Jassa cadetta Krapp, Rampin & Libertini, 2008 \n* Jassa calcaratus (Rathke, 1843) \n* Jassa californicus (Boeck, 1871) \n* Jassa carltoni Conlan, 1990 \n* Jassa falcata (Montagu, 1808) \n* Jassa fenwicki Conlan, 1990 \n* Jassa goniamera Walker, 1903 \n* Jassa gruneri Conlan, 1990 \n* Jassa hartmannae Conlan, 1990 \n* Jassa herdmani (Walker, 1893) \n* Jassa ingens (Pfeffer, 1888) \n* Jassa justi Conlan, 1990 \n* Jassa kjetilanna Vader & Krapp, 2005 \n* Jassa marmorata Holmes, 1905 \n* Jassa marmorea \n* Jassa monodon (Heller, 1867) \n* Jassa morino