This important, long-needed revision of the authors' previous book discusses the 473 named species of coccidia of rodents. It. contains over twice as many as the 1965 book, The Coccidian Parasites (Protozoa, Sporozoa) of Rodents. Included is the available up-to-date information about each of these species. Data are given for the 99 forms which have insufficient information available to justify assigning them species names. This work can be used as a guide to future investigations, not only on rodent coccidia, but also on the coccidia of all other vertebrates and even some invertebrates. This book will serve as an invaluable and authoritative source for parasitologists. It is of importance to those involved in protozoology, tropical medicine, wildlife diseases and veterinary medicine.