User blog comment:Xilinoc/Ch. 590 - Marching Out the ZOMBIES/@comment-24546844-20140723141841/@comment-5398287-20140724062909

I believe Gantenbainne and Rudbornn are the only Arrancar who were not shown being killed and who have yet to make a reappearance (Grimmjow not included in that list for obvious reasons). Nirgge died when Sui-Feng slammed into his head, and Hisagi killed Findorr by impaling him with Kazeshini, as I recall (the anime showed his death more clearly, but in a silhouetted and different manner - it went through his head).