During the past two decades there has been increased use of marine mammals for education, and the presence of these animals is now commonplace in many aquariums, oceanariums, zoos, and aquatic animal research institutions. 1 , 2 Also during this period, increased medical knowledge concerning the diseases and therapy of these aquatic animals has been gained. 3 , 4 Although reports of mycotic infections in marine mammals are relatively rare compared to those of infectious diseases caused by viruses, mycoplasmas, bacteria, and helminthic parasites, it is important to remember that fungal organisms can contribute to the death of these animals. 5 , 6