In “The Time Machine,” the underground dwelling creatures are called Morlocks.
H. G. Wells’s 1895 novella presents the Morlocks as one of two far-future branches of humanity. They live beneath the surface in darkness, operating the machinery that supports the seemingly carefree Eloi, who live above ground. Their underground homes are reached through well-like shafts scattered across the future landscape.
The Time Traveller initially assumes that the Eloi are the only surviving humans. He later discovers that the Morlocks have retained practical skills and industry while the Eloi have become physically weak and dependent. He theorizes that the Morlocks descended from the working class and the Eloi from the privileged class, making the creatures a satire of Victorian class division.
A common mix-up is confusing Morlocks with the Eloi. The Eloi are the delicate surface dwellers; the Morlocks are the nocturnal subterranean people who eventually prey on them. Weena is an individual Eloi character, not the name of either species.