Nacac

The Nacac are a semi-sapient species of aquatic creatures which inhabit a world known as the Hydrosphere. They're biologically related to the sapient Plekne.

Biology
The Nacac are to the Plekne as Mermaids are to Humans. They are aquatic creatures with webbed hands and long wavy fins on their arms. In the place where a Pleknan's legs would be, they have a fish-like tail instead. They breathe through their skin. They are also known for their friendly disposition, going as far as to rescue members of other species who are in danger of drowning.

Appearances

 * "Into the Hydrosphere", by Neil R. Jones (1933)