until now, in the Alien series, there are 7 types of hybrids, that we have seen. 1. The alien with the smooth head. (Alien and AvP) 2. The warriors or drones. (Aliens) 3. The runner. (Alien 3) 4. The cloned aliens, they are a mixture of human and aliens (A4: Resurrection) 5. The Newborn (A4:Resurrection) 6. The Predalien (AvP:R) 7. The Queen (Aliens and A4: Resurrection) They are all hybrids, the reason they call the Predalien a Hybrid, because the producers liked the sound of it probably. You can call him Predalien. Btw, you don't see in any of the films, characters calling aliens "runners" or "drones", but they call them "serpents", that's stupid! Only in Aliens we hear the word "xenomorph" and that's it! So that's why they don't call it PredAlien.