Leviticus 11:9-12

9“From all that are in the waters, you may eat whatever has fins and scales, within the waters, in the seas and in the rivers. Those you may eat.

10But any that do not have fins and scales in the seas or the rivers, among those that swarm on the waters, or among any of the living creatures that are in the waters, they are loathsome to you.

11They are to be detestable to you. You should not eat meat from them and you should detest their carcasses.

12Whatever has neither fins nor scales in the waters, that is a detestable thing to you.