Lunarian Predator

This unnamed predator inhabits the few frigid water bodies which still exist in the subterranean realm underneath Newton, the deepest crater of the moon.

Biology
Its body is described as resembling a boa constrictor with the head of an octopus. It's light-grey in color and completely blind, using long feelers to locate its prey, the native Lunarians.

Appearances

 * A Honeymoon in Space, by George Griffith (1901)