- opesium
- Bryoz. опезий
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
opesium — n.; pl. ia [Gr. dim. ope, hole] (BRYOZOA: Gymnolaemata) In Anasca, a large opening below the frontal membrane bordered by the cryptocyst; functioning as a passageway for the lophophore in some species … Dictionary of invertebrate zoology