trunk
From ZooTerms (Dictionary of Invertebrate Zoology)
trunk (noun; Latin truncus, cut off): 1. (Annelida) a. In Polychaeta, the body between the peristomium and the pygidium. b. In Oligochaeta, the body between the peristomium and periproct.
2. (Arthropoda: Crustacea) The postcephalic portion of the body.
3. (Arthropoda: Insecta) The thorax.
