Suoinard

The Suoinard are a sapient, spacefaring species and one of the countless races that make up the intergalactic civilization known as the Guarra.

Biology
Suoinard are green creatures covered in very small scales, and require protective suits to survive on Earth. They can see in complete darkness, possibly by infrared vision. They emanate a noxious odor that can induce nausea in Humans.

Culture and society
Both the Guarra and the Llanna are vast intergalactic nations encompassing countless species through over a hundred galaxies. The war between the two of them has been going on for thousands of years with no signs of being anywhere close to an end.

Appearances

 * This Island Earth, by Raymond F. Jones (1952)