This list began as an initiative of the US National Museum of Natural History, Smithsonian Institution, maintained by the late Brian Kensley and Marilyn Schotte. It grew into a valuable resource http://invertebrates.si.edu/isopod/ for providing nomenclature on the Isopoda: Schotte, M., B.F. Kensley, and S. Shilling (1995 onwards). World list of Marine, Freshwater and Terrestrial Crustacea Isopoda. National Museum of Natural History Smithsonian Institution: Washington D.C., USA. This list is now reconstructed at http://www.marinespecies.org, with more detailed information on synonymies and distributions, and a capability to host more information, such as images, original literature, and specimen data. This list will be transferred on a monthly basis back to the Smithsonian site. Data have been contributed to the Catalogue of Life via the WoRMS, hosted by the Flanders Marine Institute (VLIZ).