With over 25,000 known species, fish are the largest and most diverse group of vertebrates. Recording key information (taxonomy, biology and human uses) for all these species is a huge task and FishBase is by no means complete. Thus, we thought it would be fair to show a list of things that you do not (yet) get from FishBase:

• Complete checklists (of 296 countries/islands, 70 marine and 140 freshwater checklists were complete in 2000);

• Fish behavior (we only cover reproductive and trophic behavior);

• Traditional distribution maps (as noted by several reviewers, our maps only highlight or mark countries from which a species is reported and plot the occurrence points currently available);

• All references for all species (we only list publications that contain suitable information and that we have used so far, currently >20,000);

• Pictures for all fishes (>25,000 pictures for >10,000 species in 2000).