palate
From ZooTerms (Dictionary of Invertebrate Zoology)
Arthropoda: Diplopoda) The endostome.
palate (noun; Latin palatum, roof of the mouth): 1. (
2. (Arthropoda: Insecta) The epipharynx.
3. (Bryozoa: Gymnolaemata) In Cheilostomata, the mandibular part of the avicularium.