Whatever it was definately had some sort of teeth, not the sandpaper type ones a striper or dogfish have left when I have caught them. The bite radius on the half moon shape was probably the size of my fist .
Bryan - Do you know if the sandtigers come into LI Sound? Looking at this picture of one, that kind of mouth could definately produce the results I saw. Now I am kind of happy I dropped it as I was about waste deep on a rock about 50'+ from shore....
