Found on riverbank . Am pretty certain that is something to do with fish --- it smells slightly that way but not strong , more like shellfish than the swimming kind .
Salmon are in that part of the river and are taken by otter / mink / heron / occasionally Shag so this could have originated in the sea and been regurgitated by something .
Freshwater mussels are also present but this is much too large to be any part of them . There are no other shellfish there as far as I am aware .
Native crayfish also live there . The "stem" of this item has the texture and almost the smell of ( cooked ) lobster or spider crab leg meat but the crays are a max of about 4" long .
The "tentacles " are a firm texture with no sign of suckers , claws or filter feeding fans , nor are they like the "dead man's fingers " ( lungs ) of crab .
It isn't Razor clam .
I have prepared fish , fowl and animals of many kinds but have never come across anything like this .
Any thoughts ?????

