Displaying 1 - 1 out of 1 Object(s)
| Term | Definition | |
|---|---|---|
| Radial thickenings | A series of protuberances arranged in a spoke-like pattern around the top of the supracalycine zone just outside the line of opercular dehiscence. |  |
| Term | Definition | |
|---|---|---|
| Radial thickenings | A series of protuberances arranged in a spoke-like pattern around the top of the supracalycine zone just outside the line of opercular dehiscence. | |