aperture
From ZooTerms (Dictionary of Invertebrate Zoology)
Revision as of 14:27, 10 September 2013 by Andreas Plank (Talk | contribs)
aperture (noun; Latin aperire, to open): 1. An opening or hole, cleft, or gap.
2. (Arthropoda: Crustacea) The postero-ventral opening into the mantle cavity of barnacles
See also: orifice. 3. (Bryozoa: Stenolaemata) The terminal skeletal opening of a zooid. 4. (Mollusca) An opening at the last-formed margin of a shell, providing the outlet for the head-foot mass.
