The Octo-Facehuggers are found inside the Engineer temple on LV-426 by Holloway, contained within molluscoid, egg-like sacs found inside honeycomb-like recesses on the ceiling of a large chamber. One of the creatures subdues and impregnates Holloway. Jocelyn Watts later finds the chamber where the Octo-Facehuggers are held, although she flees before rousing any of them.