👉 Thysanoprymna is a type of jellyfish, characterized by its unique shape and appearance, often resembling a butterfly or an octopus. This species of jellyfish can grow up to 10 centimeters in length and has a long, flexible body that allows it to float through the water. The name "Thysanoprymna" comes from the Greek word "thystos," which means "stony," as the jellyfish's body is often described