umbonal fold

umbonal fold
(MOLLUSCA: Bivalvia)
In pectinoid shells, a ridge originating at the umbo and setting the auricle off from the shell body.

Online Dictionary of Invertebrate Zoology. . 2005.

Игры ⚽ Нужно решить контрольную?

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”