This reminds me of the “devil’s purses” that we used to find on the beach in New England. They are leathery objects looking very much like the creature above, except that they are filled with skate eggs. Maybe it is also filled with skate eggs, but you can’t see that from the outside.
Two Ells 
This reminds me of the “devil’s purses” that we used to find on the beach in New England. They are leathery objects looking very much like the creature above, except that they are filled with skate eggs. Maybe it is also filled with skate eggs, but you can’t see that from the outside.
It does bear a resemblance to those!