Mantine's appearance changes from that of its pre-evolution in several ways. It is larger, has wider fins, and loses its original back markings, which are replaced by two ring-shaped marks. Its coloration is also greyer, and its back is a darker blue, along with gaining a wavy outline on its wings. It gains a streamer-like tail and longer "antennae". It also possesses two pairs of gill slits on its underside. Generally, it is pictured with a Remoraid attached to it's underside, much like a cleaner fish.