What is "golovans"

The Golovans (Russian: голованы, lit. "Headies") are a fictional alien race from the Noon Universe created by the Strugatsky brothers. Their homeworld is called Saraksh, allegedly discovered by A.-I. Bader in 2148 AD. The first contact between Golovans and a human was registered in 2157 (initiated by Maxim Kammerer) although officially it happened three years later in 2160 (see Lev Abalkin).

Golovans are mentioned in " Inhabited Island", " Beetle in an Anthill" and " The Time Wanderers".