Parasitic isopod Ceratothoa oestroides (Cymothoidea. Isopoda) is a common and generalist buccal cavity-dweller in marine fish. recognised for its detrimental effect in fingerling and juvenile farmed European sea bass (Dicentrarchus labrax). Although distributed throughout the Mediterranean. https://www.muttsandcoers.shop/product-category/crunchy-treats-2/