Okay, it is apparent that i am still on the Prometheus page and how many dont know between the difference of a xeno and a deacon. first xenos have their inner jaw as a tounge looking type thing the deacon just has a second set of jaws . and as you can tell below both are different
this is an Ultra-Morph
a FaceHugger that infected an Engineer
And this is a Deacon a Trilobite
that in fected an Engineer