^
Bacteria = Egg = Super/Royal/Praetorian Facehugger, infects Ellen Ripley and
infects a quadruped.
(Special Edition)
Or
Dream Alien representation & Facehuggers:
one onboard the USS Sulaco,
infects Ellen Ripley, perishes, (burned)
one onboard the EEV,
infects a quadruped.
(Theatrical Version & TBC New Version)