a) Ridleygram of Alien beast killing Bret for Alien (released 1978) by Ridley Scott
c) Lower legs become middle leg segment while feet become the lower leg segment tha would be the equivalent of a foot for a digitigrade animal
d) Comparable area.
With the alien head becoming the back and the chest of the victim becoming the ribbed waist while his arms becme the hips
d.i) The arm becomes the hip and the rod becomes a tendon.
e) Comparable elemens on the right
e.i) The short tail like form for tthe alien beast becomes the ribbing along the underside of the alien queen's neck
e.ii) The back pipes become the small arm on the right for the alien queen
e.iii) Large docking claw becomes the larger arms