Here are the remaining diagonal nine-squares: Seven more with SAIASAIAS (Palindromicon II), most of quality superior to
AISLELESS: ISOSERUMS "Iso|serum engl.: isoserum" from Roche Lexikon Medizin, should be in Stedman SANTAANAE Catostomus santaanae -immaculatus, ITISa ONYERBIKE on yer bike, famous advice for jobless by Norman Tebbitt STELLATED OED EARLSTARS OED overbend 1886q (Gerard Manley Hopkins) RABATINES OED rabatine, noun UNITANGLE unit-angle, OED radian 1879q MAKERELLE OED SEEDSSEED W93-100, Chris Long, eg "crop rotation, healthy seedsseed" in http://www.gtz.de/proklima/doc/pub1998/mebr-2.pdf.