This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
FMIB Series of shells of Teredo navalis from Crockett showing effect of environment on growth of ridges Note on each shell the.jpeg check categories September Series of shells of Teredo navalis from Crockett showing effect of environment on growth of ridges Note on each shell the unusual width of the interspace separating the