Ages ago Zook1shoe gave me that info for my arena. Here is what I managed to dig out. It will take me a bit more digging to get the actual issue number for you though.
Aberration: ----------------------
Aboleth ECL 17 - 8 HD +9 LA
Chuul ECL 18 - 11 HD +7 LA
Cloaker ECL 14 - 6 HD +8 LA
Delver ECL 22 - 15 HD +7 LA
Destrachan ECL 14 - 8 HD +6 LA
Ethereal Filcher ECL 10 - 5 HD +5 LA
Gibbering Mouther ECL 9 - 4 HD +5 LA
Grick ECL 7 - 2 HD +5 LA
Mimic ECL 12 - 7 HD +5 LA
Naga, Dark ECL 16 - 9 HD +7 LA
Naga, Guardian ECL 19 - 11 HD +8 LA
Naga, Spirit ECL 16 - 9 HD +7 LA
Naga, Water ECL 13 - 7 HD +6 LA
Otyugh ECL 9 - 6 HD +3 LA
Rust Monster ECL 9 - 5 HD +4 LA
Will-o’-Wisp ECL 19 - 9 HD +10 LA
Construct: ----------------------
Homunculus ECL 8 - 2 HD +6 LA
Elemental: ----------------------
Elemental, Air, Huge ECL 21 - 16 HD +5 LA
Elemental, Earth, Huge ECL 21 - 16 HD +5 LA
Elemental, Fire, Huge ECL 20 - 16 HD +4 LA
Elemental, Water, Huge ECL 20 - 16 HD +4 LA
Invisible Stalker ECL 15 - 8 HD +7 LA
Thoqqua ECL 7 - 3 HD +4 LA
Magical Beast: ----------------------
Ankheg ECL 8 - 3 HD +5 LA
Bulette ECL 14 - 9 HD +5 LA
Girallon ECL 11 - 7 HD +4 LA
Hydra ECL ?? - # HD +7 LA
Cryo-Hydra ECL ?? - # HD +8 LA
Pyro-Hydra ECL ?? - # HD +8 LA
Hippogriff ECL 5 - 3 HD +2 LA
Outsider: ----------------------
Achaierai ECL 12 - 6 HD +6 LA
Arrowhawk, Adult ECL 11 - 7 HD +4 LA
Arrowhawk, Elder ECL 18 - 15 HD +3 LA
Arrowhawk, Juvenile ECL 8 - 3 HD +5 LA
Celestial, Lantern Archon ECL 5 - 1 HD +4 LA
Celestial, Planetar ECL 28 - 14 HD +14 LA
Chaos Beast ECL 14 - 8 HD +6 LA
Demon, Bebilith ECL 20 - 12 HD +8 LA
Demon, Glabrezu ECL 23 - 12 HD +11 LA
Demon, Marilith ECL 24 - 16 HD +8 LA
Demon, Nalfeshnee ECL 24 - 14 HD +10 LA
Devil, Cornugon ECL 24 - 15 HD +9 LA
Devil, Gelugon ECL 24 - 14 HD +10 LA
Devil, Hamatula ECL 18 - 12 HD +6 LA
Devil, Hellcat ECL 13 - 8 HD +5 LA
Devil, Osyluth ECL 18 - 10 HD +8 LA
Devil, Pit Fiend ECL 26 - 18 HD +8 LA
Formian, Myrmarch ECL 18 - 12 HD +6 LA
Formian, Taskmaster ECL 12 - 6 HD +6 LA
Formian, Warrior ECL 10 - 4 HD +6 LA
Formian, Worker ECL 6 - 1 HD +5 LA
Night Hag ECL 16 - 8 HD +8 LA
Ravid ECL 9 - 3 HD +6 LA
Salamander, Noble ECL 20 - 15 HD +5 LA
Vargouille ECL 4 - 1 HD +3 LA
Xorn, Average ECL 12 - 7 HD +5 LA
Xorn, Elder ECL 20 - 15 HD +5 LA
Xorn, Minor ECL 9 - 3 HD +6 LA
Plant: ----------------------
Tendriculous ECL 16 - 9 HD +7 LA
Undead: ----------------------
Allip ECL 13 - 4 HD +9 LA
Bodak ECL 15 - 9 HD +6 LA
Devourer ECL 22 - 12 HD +10 LA
Spectre ECL 17 - 7 HD +10 LA
Wraith ECL 15 - 5 HD +10 LA