Aliens debuting in the year 1926.
“The Kalkars are one of two human races native to the interior world of Earth's moon. They are...Kalkar
“One of the two humanoid races of Earth's moon, the U-gas are distinguishable from normal humans...U-ga
“The Rympth is a serpent-like creature native to Va-nah: the inner surface world of the Moon. It...Rympth
“Flying Toads are a species of small flying creatures native to Va-nah, the inner surface of the...Flying Toad