Translations:Food and drink prohibitions/59/en

Certain species of fish, such as the freshwater eel (Anguillidae) and all species of catfish, are also forbidden by Judaism. Although they live in water, they appear to have no scales (except under a microscope) (see Leviticus 11:10-13). Sunni Muslim laws are more flexible in this. Catfish and shark are generally seen as halal as they are special types of fish. Eel is generally considered permissible in the four Sunni madh'hab. The Ja'fari jurisprudence followed by most Shia Muslims forbids all species of fish that do not have scales, as well as all shell fish species except prawns.