peristome in a sentence

Examples

1. The peristome is the margin of the aperture of a gastropod shell.
2. The peristome is green to dark red and striped with purple bands.
3. The peristome is cylindrical and up to 30 mm wide.
4. The peristome is rounded and up to 12 mm wide.
5. The flattened peristome may be up to 5 mm wide.
6. The peristome is usually yellowish and may bear red stripes.
7. The narrow peristome teeth are up to 1 mm long.
8. The peristome is 1 to 2 mm wide and bears small teeth.
9. The peristome ribs are spaced 0.5 to 1 mm apart.
10. The peristome is cylindrical and up to 3 mm wide.