apertural muscle
From ZooTerms (Dictionary of Invertebrate Zoology)
Revision as of 13:23, 12 September 2013 by Andreas Plank (Talk | contribs) (1 revision: import_simple_(-definition))
apertural muscle: (Bryozoa: Gymnolaemata) One of either two pairs of muscles of cheilostomate autozooids, the occlusor muscle of the operculum or the diaphragmatic dilator muscle.
