Wednesday, September 12, 2018

What are the alternate signs for a kosher fish?



In addition to the signs for a kosher fish mentioned in the Torah, The Tur (Y.D. 83) brings alternate kosher signs for fish that are not accepted by all Poskim. Namely, the head of a kosher fish is not sharp and the fish has a spine.


Can someone explain what these signs are? What is considered a sharp head? What is meant by a spine (I'm assuming it doesn't mean the skeleton)? Pictures would be awesome as well.


If it helps, here's the wikipedia article on Fish Anatomy




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