The deep blue is a mysterious place, but still, you’d think clearer names might make things easier to be understood. Sometimes the names make sense and it is easy to know the reason behind the name. Sometimes they’re just baffling.

Check out these five misleading marine creatures and see if you reach the same conclusions as their names describe them.

Spiny Dogfish

Regardless of its cute sounding name, you can’t play fetch with the spiny dogfish. In fact, this fish is not related to the dog, near or far. If we want to describe it, we can say it is considered a medium-sized shark that you can find off the coast of six continents.

In the market, they are called rock or huss salmon, and are regarded as one of the commonly eaten fish.

Jellyfish

Jellyfish aren’t made of jelly or even considered a type of fish — it’s a soft animal without bones, and you can find more than 10,000 types called jellyfish.

The sea nettle is considered the most infamous kind of jellyfish, which features a bell-shaped body with long trailing tentacles.

Sea Gooseberry

Gooseberry is one of the sumptuous and exotic fruits that are mainly found in Africa, Asia, and Europe, but don’t think to try to eat a sea gooseberry.

Sea Gooseberries are a type of tiny animals that form a group of sea creatures called comb jellies. Despite their distant relatives, the jellyfish and comb jellies have a high percentage of water that is held in place by a membrane, which navigates the sea through the motions of very thin, fine hairs.

Starfish

Much like jellyfish, starfish are not classified as a fish, but whoever named these echinoderms its common name, he was right about the “star” part.

This is one of the misleading marine creatures that can be classified from the oldest forms of life on the planet. The first starfish skeletons came from the Cambrian period, as they lived in the sea before dinosaurs walked the Earth.

Fun fact: these spiky animals can regenerate and grow back from just one lost leg.

Sea Pineapple

The sea pineapple isn’t a real pineapple — and it’s not a plant either. It belongs to the tunicate family, also called sea squirts — which are considered marine animals with a rubbery texture and sharp, bitter flavor. Despite tasting nothing like pineapple, it’s considered a prized delicacy in regions like Korea and Japan.

We can only say that their weird name comes from their thorny skin that somewhat looks like that of a pineapple.