Spotted paddle-tail newt
"Pachytriton" species are stout-bodied, smooth-skinned aquatic newts. Their heads are large and flattened, and they have conspicuous labial folds and short, stubby legs and toes. They breathe through both lungs and skin. 
"P. brevipes" ranges from 5.5 to 7.5 in as an adult. It has prominent labial folds, long digits, and smooth skin, which differs from the tuberculate skin typical of newts.
Aliens (film)
Ripley and Newt fall asleep in the medical laboratory, awakening to find themselves locked in the room with the two "facehuggers", which have been released from their tanks. Ripley triggers a fire alarm to alert the Marines, who rescue them and kill the creatures. Ripley accuses Burke of releasing the facehuggers so that they would impregnate her and Newt, allowing him to smuggle the embryos past Earth's quarantine, and of planning to kill the rest of the Marines so that no one could contradict his version of events. Before the Marines can kill Burke, the power is cut, and aliens assault through the ceiling. In the ensuing firefight, Burke attempts to flee but is cornered by an alien, while Hudson is dragged away after covering the others' retreat. Gorman and the injured Vasquez detonate a grenade and sacrifice themselves; Hicks is injured, and Newt is captured.