lipobranchia

from The Century Dictionary.

• In Lankester's classification, one of three grades of the class Arachnida, contrasted with Embolobranchia and Delobranchia, and composed of the weasel-spiders, harvestmen, false scorpions, and mites, or the four orders Galeodina, Opilionina, Pseudoscorpionina, and Acarina.