Planet of Origin: Neptune
Neptunians are a green skinned reptilian humanoid species supposedly native to the planet Neptune or one of its moons.They are amphibious with four fingers palmed hands and feet, have large yellow eyes on each sides of their head whihc gives them an excellent line of sight. Their body is covered in scales. Although their level of civilisation still remains unknown, they are known to have developed sewing craft as their use of clothing demonstrates.
Note: In 1975, the Mego toy company produced the so-called action figure doll as part of their Star Trek aliens toy line although such a creature never appeared at any time inside the franchise.
Source: Mego Star Trek toyline.