hypopharynx
From ZooTerms (Dictionary of Invertebrate Zoology)
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hypopharynx (noun; Greek hypo, under; pharyngx, pharynx): 1. (Arthropoda: Chelicerata) The chitinous plate situated on the labium in certain Acari.
2. (Arthropoda: Crustacea) The metastoma.
3. (Arthropoda: Insecta) a. A median mouth-part structure anterior to the labium, usually associated with the salivary glands by ducts. b. A tongue-like lobe that arises from the mouth-cavity floor and serves as a sensory apparatus for taste, variously modified for feeding in many groups; ligua
See also: glossa.
