This volume offers brief biographical sketches of many individuals who have added to our knowledge of the science of ichthyology. It defines "ichthyologist" rather broadly in an effort to give credit to those who, in the absence of research or published contributions, otherwise have made significant collections of fishes, illustrations of fishes, or important donations of ichthyological materials to museums or to individual researchers, as well as to those who made major exploratory expeditions possible. One or more references are cited for each account, allowing access to additional information. Many entries also have a photo or portrait. Credits and Index.