Board Thread:Questions and Answers/@comment-24035756-20131106203316/@comment-1387259-20131106211904

The best we can assume is that we have 27 Sternritter (counting 2 Royds) given the lettering system, Yhwach, and the two Arrancar we've seen. We don't exactly know what the rest of the members are. We've certainly seen some non-SR's among the 1st Jagmardee (headed by Quilge), and some other foot soldiers were present during Yhwach's huge announcement in Chapter 543 (like the poor guy who Bambietta sliced up). What these foot soldiers are, however, we don't really know. There's been no mask fragments, so my best guess is Quincy.