Carphophis Amoenus is a species of snake commonly known as the "midland worm snake." This snake is found in many regions across the United States and is a popular pet in some areas. In addition to its common name, there are several synonyms used to refer to this species. Some of these include the brown worm snake, the eastern worm snake, and the leathery worm snake. All of these names refer to the same species, and they are commonly used interchangeably in scientific literature and pet stores. Regardless of what you call them, Carphophis Amoenus snakes are fascinating creatures with a unique appearance and interesting behavior.