© The EveningTelegraph, UKA close-up of the mystery creature’s head.
Locals were left scratching their heads after the fearsome looking remains of the dead animal were found by a passing local on Easthaven beach.
Measuring between four and five feet long, the creatures's jaw is also filled with a set of sharp teeth.
Dozens of people have speculated online about what the mystery sea creature could be.
Some have suggested it could be a Conger Eel that has washed up, whereas others believe it could be a ling.
But some locals have pointed out that the grisly remains could be a shark or a pike.
More amusing suggestions even say it could be a dinosaur or the Loch Ness monster.
Local man David Mackland came across the find while on the beach with his family.
He said: "We were just walking on the beach to see what we could find and we came across this. I would say it was four to five feet long and about a foot wide. It was pretty big.
"You could see the teeth straight away."
David said he is now keen to find out what the animal could be.
He added: "I don't know what it is. To be honest it looks a bit like an eel as it has no fins on the back.
"You don't usually see stuff like that. You very rarely see fish on the beach. You sometimes see dead birds but it is unusual to see that.
"There was a big chunk taken out of it. I think it must have been killed out at sea and then washed up on the beach."
It is not the first unusual thing to be washed up on beaches in Angus in recent months.
Earlier this year, thousands of cuttlefish and hundreds of puffins were found along the coast in Angus.
People walking along the beach between Carnoustie and Easthaven in March were left shocked after coming across the rare sight.
Conservation charity RSPB, which was working closely with CEH (Centre of Ecology and Hydrology), said it had received numerous reports of corpses along eastern shores, including puffins, guillemots, razorbills, fulmars and even a porpoise.
Reader Comments
to our Newsletter