From the Numenera Bestiary:
"The sound of sandpaper on sandpaper scratches the air when a kanthid moves. Most kanthids are multilimbed creatures shaped vaguely like other animals found in the Ninth World. Whatever its underlying shape, the rough skin of a kanthid is a stony mineral whorled and studded with short spines. Here and there, openings in the stone reveal mouths ringed in writhing cilia.
Kanthids with biped, humanoid shapes sometimes speak, though they don’t make much sense. Streams of nonsense, rhymes, names, stories, and even snippets of song might emerge from two or three different cilia-ringed mouths at once."
The party has encountered several kanthid in the depths of the Wrist of Industry.