Fish-men

Fish-men are one of two humanoid species that inhabit and rule the seas, the other being the merfolk. The latter is known for having their upper half resemble that of a human while the lower half is that of a fish or other undersea creature. Fish-men on the other hand, are more closely related to the species from which they are bred. Unlike merfolk, their legs are still intact and they bear a more fish-like appearance.