The Key

If you have observed a possible disease of coral reef organisms and wish to determine if any of the known diseases match your observations, please use the key below.

Select the organisms in which you are interested from the choices below.

Fair Warning:   Because detailed images are necessary to illustrate clearly the characteristics of these diseases, some of the graphics on the subsequent pages may take some time to load. We have tried hard to balance the need for detail and the size of the files. We hope that you will agree that it is worth the wait.