Fusion Ichthyoid

Ichthyoid mutates have had their DNA fused with the DNA of any of various cold-blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with scales. This includes the various prehistoric species. ''Note: This also includes aquatic crustaceans, such as crabs and lobsters, cephalopods, like octopodes and squids, and even mollusks like sea snails and sea slugs. This is for the sake of simplicity.''

Traits
These mutates tend to have the behaviors, as well as the bodily features, of the fish, or other aquatic non-mammal, that they are fused with. For instance, they may have scales on their skin, fins, webbed hands and feet, or even tails for legs. Some may have octopus tentacles, crab shells, snail shells, etc. Like some other Fusion mutates, they may feel a bot self-conscious about their appearance, or else they won't even care at all.