Robert S. Butler & Nathan A. Johnson 
Freshwater Mussels of Florida [PDF ebook] 

An exhaustive guide to all aspects of the freshwater mussel fauna in Florida, Freshwater Mussels of Florida covers the ecology, biology, distribution, and conservation of the many species of bivalve mollusks in the Sunshine State. In the past three decades, researchers, the public, businesses that depend on wildlife, and policy makers have given more attention to the threatened natural diversity of the Southeast, including freshwater mussels. This compendium meets the increasingly urgent need to catalog this imperiled group of aquatic organisms in the United States. Each entry in this definitive guide provides a detailed description and multiple depictions of the species as well as select characteristics of its soft anatomy and miscellaneous notes of interest. Individual distribution maps pinpoint the historical and present occurrence of each bivalve species and are just one component of the rich set of 307 mussel and habitat photographs, seventy-four maps, and thirteen tables that illustrate the book. Of particular interest are remarkable electron micrographs of glochidia, the specialized larval life history stage parasitic upon fishes. Freshwater Mussels of Florida will be of lasting value to state and federal conservation agencies as well as other government and nongovernment entities that manage aquatic resources in Florida. The research provides a key baseline for future study of Florida mussels. The survey results in this guide, along with extensive reviews of historical mussel collections in natural history museums, provide a complete picture of the Florida mussel fauna, past and present.