VENUSIANS / PHIBS / CENTOSAURS

Planet of origin: Venus

Phibs are a peaceful green skinned amphibian humanoid species with wide set goggle eyes, broad lipless and mouth, muscular webbed arms living in apreinustrial tribal society in the highlands lakes of Venus.  They communicate via touch-based telepathy and  suckle their own. They have been known to take momentary telepathic control of less evolved indigenous lifeforms such as the twenty-legged two hundred tons serpentine bodied monsters called centosaurs for self-defense.

Note: Phibs look much like the version of the venusians Frank R. Paul's Painted the same year.

Source: Isaac Asimov, Half-breeds on Venus.