Leviticus 11:10 says "all that have not fins and" these "in the seas" shall be an abomination
[DOC] [TLE] Leviticus 11:10 But all creatures in the seas or streams that do not ... [PAR] And all that have not fins and scales in the seas, and in the rivers, of all that ... 
and of any living thing which is in the waters, they shall be an abomination unto 
you: ...