- The basal joint of this legs of crustaceans.
- The basal joint of this legs of Crustacea.
- In crustaceans: The proximal joint associated with limb of an arthropod pet, through which the limb is articulated with all the body.
- the next joint of a developed endopodite, between the coxopodite (protopodite) and the ischiopodite. Milne-Edwards; Huxley. See additionally cut under endopodite.