Maarcheen

Maarcheens were an intelligent species that was part of the Averon Union. They were small, with four arms and grey parchment-like skin. Their heads, nearly featureless except for shiny black eyes, were smooth and on long jointed necks. Max and Sarah Jane Smith encountered robotic versions of them on a spaceship while they were escaping from the prime moon of Averon. (PROSE: A Device of Death)