Leviticus 11:12
Whatever has no fins nor scales in the waters is an abomination to you.
World English Bible (Public Domain)
In context
Before · Leviticus 11:10–11
10All that don’t have fins and scales in the seas and rivers, all that move in the waters, and all the living creatures that are in the waters, they are an abomination to you, 11and you shall detest them. You shall not eat of their meat, and you shall detest their carcasses.
12Whatever has no fins nor scales in the waters is an abomination to you.