Lamprey eel, also known as the Atlantic lamprey or the lamprey fish, is a species of jawless fish. If you want to try out different names for lamprey eel, there are a few synonyms that you can use. These include the lamprey, sea lamprey, and the nine-eyed lamprey. Additionally, some people colloquially refer to the lamprey eel as the "vampire fish" due to its habit of feeding on other fish by latching onto their body and using their sharp teeth to extract blood. No matter what you choose to call it, the lamprey eel is an interesting and unique species that inhabits freshwater and marine environments around the world.