[MrGoodbytes]

I agree with whomever said it was a spaghetti worm. I lot of sedentary annelids look pretty nasty when they come out of their burrows and tubes. Ever see a feather duster worm out of its tube?

Look up Terbellidae, the spaghetti worm family; a kind of polychaete worm (many-bristled worm). They look sort of like your blob in the pics of them out of their burrows. The rows of what look like bristles on either side indicate its some kind of segmented worm.