Neptunian n. 1

The Neptunians would be wholly unable to see Uranus.

These Neptunians were huge savages, rivaling in weight even the largest elephants.

The place was packed with the most motley, hard-bitten interplanetary throng that could be assembled in the System. Jovians, Venusians, Neptunians, Earthmen, and men of every other planet, all of them wearing weapons and all of them drinking and carousing with equally hard-eyed women.

Oh, yes. The Expedition that finally succeeded in liberating the Neptunians. Noble effort.

I wonder what Charles is planning for the Congress? A Neptunian? Or perhaps a whole delegation from Proxima Centauri.

Neptunians secrete protective bubbles around them when in danger.

They screamed for a pilot as the other Neptunians stumbled out beside them. Together they ran for the planes.

As our father was an entomologist and all-round naturalist, we also had ample access to scientific drawings of, for instance, pond life under the microscope, which may have contributed to our ideas of what Martians and Venusians and Neptunians and Saturnians should look like.