ring septum
From ZooTerms (Dictionary of Invertebrate Zoology)
Revision as of 23:35, 13 September 2013 by Andreas Plank (Talk | contribs) (1 revision: import_simple_(-definition))
Bryozoa: Stenolaemata) The centrally perforated skeletal diaphragm in the living chamber of a zooid.
ring septum: (