Deuteronomy 14:10

But {anything that does not have} fins and scales, you may not eat, [for] it [is] unclean for you.

Treasury of Scripture Knowledge

Summary

And whatsoever hath not fins and scales ye may not eat; it is unclean unto you.

General references

Bible References

General references

Leviticus 11:9
" 'These you may eat from all that [are] in the water: any in the water that has a fin and scales, [whether] in the seas or in the streams--such you may eat.