Sandcastle Worm


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Slide 1:

Sandcastle Worm Phragmatopoma californica

Slide 2:

Phylum Annelida Brown worm with lavender tentacles Grows to about 3 inches Lives on the California coast from Sonoma County to Baja California

Slide 3:

P. californica makes his own home and shelter.

Making a tube:

Making a tube Very meticulous when picking out his sand grains. Video in a lab setting

In laboratory settings:

In laboratory settings

Slide 6:

The worm picks out the best sand grains, silicon crystals, or glass beads to put on his tube and organizes them.

The Glue:

The Glue Composition: 3 proteins Magnesium Calcium Side chains Features: Binds underwater Is water based but not water soluble Adheres in about 30 seconds Hardens in a few hours Coacervate: a little droplet that does not mix with others

Practical uses for us:

Practical uses for us Mend broken bones Keep bones aligned Biocompatible Biodegradable


References Shao, Hui, Kent N. Bachus, and Russel J. Stewart. "A Water-Borne Adehsive Modeled after the Sandcastle Glue of P. Californica." 13 May 2009. Web. 13 May 2011. <>. "YouTube - Sandcastle Worm Video." YouTube . 18 Aug. 2009. Web. 16 May 2011. <>. Zhao, Hua, Chengjun Sun, Russel J. Stewart, and J. Herbert Waite. "Cement Proteins of the Tube-building Polychaete Phragmatopoma Californica." The Journal of Biological Chemistry . Journal of Biological Chemistry, 30 Dec. 2005. Web. 13 May 2011. <>.

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