The World Amphipoda Database: History and Progress Author Horton, Tammy Author Broyer, Claude De Author Bellan-Santini, Denise Author Coleman, Charles Oliver Author Copilaș-Ciocianu, Denis Author Corbari, Laure Author Daneliya, Mikhail E. Author Dauvin, Jean-Claude Author Decock, Wim Author Fanini, Lucia Author Fišer, Cene Author Gasca, Rebeca Author Grabowski, Michal Author Guerra-García, José M. Author Hendrycks, Ed A. Author Hughes, Lauren Elizabeth Author Jaume, Damia Author Kim, Young-Hyo Author King, Rachael A. Author Brutto, Sabrina Lo Author Lörz, Anne-Nina Author Mamos, Tomasz Author Serejo, Cristiana S. Author Senna, André R. Author Souza-Filho, Jesser F. Author Tandberg, Anne Helene S. Author Thurston, Michael H. Author Vader, Wim Author Väinölä, Risto Author Domedel, Georgina Valls Author Vandepitte, Leen Author Vanhoorne, Bart Author Vonk, Ronald Author White, Kristine N. Author Zeidler, Wolfgang text Records of the Australian Museum 2023 2023-12-06 75 4 329 342 http://dx.doi.org/10.3853/j.2201-4349.75.2023.1875 journal article 10.3853/j.2201-4349.75.2023.1875 2201-4349 10414010 Family Niphargidae The Niphargidae is a large family of freshwater Amphipods living almost exclusively in subterranean waters of the Western Palearctic. The original lists of genera and species (nine accepted genera; 274 accepted species) in the WAD were outdated and incomplete. The data grant allowed one genus ( Niphargopsis Chevreux, 1922 ) to be moved to Niphargus SchiÖdte, 1949 , and two new genera ( Exniphargus G. S. Karaman, 2016 , Niphargobatoides G. S. Karaman, 2016 ) were added; 111 subspecies were raised to species rank; 34 new species were added; two species were moved into synonymy. The original names for 377 taxa (species and subspecies) were documented and missing original description sources were scanned and linked ( Fišer & Horton, 2015 ). The authorities were completed for all taxa, and years of publication were revised where necessary. Type or neotype localities for 379 taxa were documented and information on the deposition of type, lectotype or neotype material was documented for 91 taxa. The etymology for 219 taxa was documented. The environmental requirements were revised for all species. The distribution for 379 taxa was documented at the level of country and FADA biogeographical regions ( Fišer & Horton, 2015 ). This revision was a major improvement to the taxonomic backbone and eased all subsequent work on the group.