You all know my hatred of the Alien NEWBORN seen in Alien: Resurrection. Until the Predalien's arrival, it was the sole bane of the series. I've heard in interviews that script writer Joss Whedon was very displeased with what was put up on screen. Well, here's some snippets from his script to shed some light on what he had envisioned for the Newborn:
“An alien, to be sure, but nothing we've seen so far, its forelegs arch out of its back like spiders legs, its back legs set on enormous haunches, thick and powerful. Its head is long, eyeless, like the others, but along its white expanse red veins, coming out of the skin and running like thick black hairs to the back. It has retracted pincers at the side of head that come out when its tongue does. Its much bigger the others, nearly the size of the queen herself. And it's bone white.” Whedon’s script also mentions the Newborn has tendrils/tentacles.