I went looking around last night on BST in a group and widescanned most of the area, NMs blocked some movement around the zone though. So missing a few mob families and confluxes.
Murex (conch like ones) aggro to JA only. Thunder and Wind based. Murex seem quite squishy and take normal damage from spells. They are BLMs and will cast -ga III with what seemed to be fast cast when I had 4 aggro me. Their TP move is conal damage but seemed fairly weak, ~200.
Amoeba (Floating things) don't aggro JA or sight, I've heard they aggro magic but no proof myself. Earth and Dark based, mainly DRK type mobs but I've seen a Eph. Dark one cast sleepga II. Don't fight Eph. Earth based ones with melees, serously don't >.> they have a TP move which does AoE drain for ~500 and resets all JA timers including 2hr.
Mini worms are adorable.