Nereids

The Homo Aquatilis, otherwise known as the Nereids, are a subspecies of Solarisian homonids that originated from the planet Veralia, and are a race that highly values adaptability,

Physiology and Characteristics
Nereids are a mostly humanoid species with a stature similar to humans. Out of the Great Five, they are the most polymorphic race due to their ability to change most of their phenotypic makeup. The most common traits shared among them are scales layering their skin, gills, and other fish-like characteristics.

As mentioned before, Nereids have the ability to modify their own genotypic and phenotypic makeup to a limited extent. This is called Tahul, and is the most defining characteristic of the Nereids. It allows them to adapt their bodies to new surroundings, and has helped them survive the harsh conditions of aquatic life. They can form gills, adjust their bodies for deep sea pressure, create webbing between fingers for swimming, and more.

Because Nereids can be so diverse, it’s difficult to describe their appearance as a species. They always have the basic features of humanoids, such as having four limbs and a face.