Phragmatopoma californica (Fewkes 1889)的圖片
描述：
These gregarious worms make their tubes by cementing grains of sand.
來源資訊
- 許可
- cc-by-nc-sa-3.0
- 版權
- 2005 California Academy of Sciences
These gregarious worms make their tubes by cementing grains of sand.
