umbonal cavity
From ZooTerms (Dictionary of Invertebrate Zoology)
Revision as of 23:35, 13 September 2013 by Andreas Plank (Talk | contribs) (1 revision: import_simple_(-definition))
umbonal cavity: 1. Part of the valve interior which lies within the umbo and under the hinge plate.
2. In oysters, that part of the left valve interior lying in the umbonal region beneath the ligamental area.
