operculum in a sentence

Examples

1. The conoid spire is canaliculated, composed of six operculum is thin.
2. Within the orifice beneath the operculum there is a tongue-like lingula.
3. Operculum powder is also an important ingredient in Chinese and Japanese incense making.
4. It has a thick shell with a calcified operculum.
5. Aberrations in the shape of operculum have been observed.
6. They can retract into their shell and close it off with an operculum.
7. A minority however belong to much more ancient operculum.
8. The upper operculum has a small diffuse dark spot.
9. Most species have an operculum ( a small lid-like organ ).
10. A black blotch is also present on the operculum.