Yeah, we have seen #8, Syzael.
So, basically we've got left:
10= Yammy (pie for any Shinigami in Hueco Mundo)
9= Kaien/ Areoniero (sp?) [deceased]
8= Syzael [Eternal Pain/Deceased/ Out of action]
7= Zommari [Deceased]
6= Grimmjow Jaggerjaques [Wounded]
5= Nnoitra [In Combat]
4= Uluqiora (sp?) [whereabouts unknown]
3,2,1 = {Halibel, old dude, Lazy bum} Whereabouts unknown.
r e i n said:
What? These aren't pokemon we're talking about. Hollows don't evolve, period. Gillian=Menos Grande, and other minor hollows such as Aeroniero, etc. They stay that way, period. Adjuchas are uncommon and are probably Espada 10, 8-5?? They are the in betweens. Vasto Lorde are most likely Espada 1-4 and are rare, though we do know they exist. A hollow is created as one of the three, and forever they'll stay that way. When they transcend to Arrancar they maintain this label, and their power is determined by it.
Have you read any of the manga?
It clearly says that Hollows can evolve. Grimmjow even went on a quest with other Adjucas-level Menos to evolve into Vasto-lorde Menos, be eventually they gave up, as the couldn't progress through the
final stage. (But, they clearly evolved through Normal hollows and Gillian.) Note that Kubo Tite showed Arrancar #11 as a Gillian, when he demonstrated the life cycle of Hollows. (Gillian are actually an evolution of normal hollows. they are hollows who desired the soul of other hollows, instead of humans, and thus became a conglomerate of hollows.)
Also:
All hollows start as normal hollows, they don't immediatly start as Adjucas/Gillian/Vasto-lorde. Those are Menos Grande, an entirely different class of Hollow.
Life Cycle of Hollows: (annotated edition)
Human Soul -> Hollow -> Menos <-> Diversified Menos(w/personality) <-> Adjucas Menos ?*-> Vasto-lorde
*It is unkown whether a Vasto-lorde Menos Grande can revert back to a Gillian if it fails to consume more equal-level Hollow