Abstract / Introduction / Summary:
Three individuals of red seabream, Pagrus major (Temminck and Schlegel, 1843) (Sparidae), were purchased in the fresh fish section of a supermarket in Higashi-Hiroshima, Hiroshima Prefecture, western Japan. These fish were commercially caught in the central Seto Inland Sea off the coast of the prefecture. One of the fish was found to be infected by a pair of an ovigerous female and a male of cymothoid isopod Ceratothoa verrucosa (Schioedte and Meinert, 1883) in the buccal cavity. This represents the first documented case of C. verrucosa found from red seabream sold at fish stores and supermarkets in Japan.