33. Goblin Shark
The Goblin Shark is not very popular, but we have known of its existence since at least 1898. This was when the American Ichthyologist(fish scientist) named David Starr Jordan wrote about them in an issue of Proceedings of the California Academy of Sciences. They tend to live in deeper waters where humans rarely go.
This could be why they are often overlooked on the shark list. They do get their name honestly too. Looking at their facial features, you’d think right off that they look just like a goblin in shark form. That said, we cannot blame anyone for thinking this. Since they are real and can be quite dangerous, they count big time as one of the most horrifying sea creatures known.