The Flansians are an alien species with generally yellow skin, thin long arms and legs, and large heads with one very big eye.
A Flansian couple was at Nuptia 4 for marriage counseling before Beth and Jerry Smith's mythologs broke out of their cells and went on a murderous rampage. The same couple were present at the wedding of Birdperson and Tammy on Planet Squanch before they may or may not have been apprehended by the Galactic Federation.