Acute Hepatic Necrosis Associated with a Savmcystis-Like Protozoa in a Sea Lion ( Zalophus Californianus )

A lo-year-old male California sea lion (Zalophus californianus) from an aquarium in Florida died after 3 days of exhibiting lethargy and anorexia and spending unusually long periods of time in the water.The animal's nutritional condition was adequate, and its internal body temperature was 37.2 C. Both testicles were retained within the body cavity.A small amount of blood was present around the external nares.The lungs were dark red.Petechial hemorrhages were noted on the parietal pleura and endocardial surface of the left and right ventricles.Multifocal areas of dark discolora-